3 things to never do with a credit card · TED-Ed
揭秘信用卡公司如何通过奖励机制和利息设计，诱使用户陷入债务循环。视频教你识别常见陷阱、选择合适卡种并管理余额，适合练习财经类听力与日常消费英语。
For over four decades, Walter Cavanagh held a truly credit-worthy record: the most credit cards held by one person.
四十多年来，Walter Cavanagh 保持着一项真正值得信赖的纪录：个人持有最多信用卡。
What began as a bet between friends led him to open over 1,400 cards, ranging from traditional bank-issued to those from airlines, gas stations, and even ice cream shops.
这一切始于朋友间的一个赌约，最终他开了超过1400张卡，从传统银行发行的卡到航空公司、加油站甚至冰淇淋店的卡都有。
Most people have far fewer credit cards.
大多数人的信用卡数量要少得多。
While useful for secure purchasing, handling emergencies, and building credit scores, credit cards can make it difficult to avoid overspending.
虽然信用卡有助于安全购物、应对紧急情况和建立信用评分，但它们也可能让人难以避免过度消费。
Globally, the outstanding credit card debt exceeds trillions of dollars.
全球范围内，未偿还的信用卡债务已超过数万亿美元。
And this is no accident.
这并非偶然。
Credit card companies intentionally design these systems to encourage spending and lock you into a cycle of interest and fees.
信用卡公司有意设计这些系统来鼓励消费，并将你锁定在利息和费用的循环中。
So, how can you avoid their most common traps?
那么，如何避免最常见的陷阱呢？
It starts with card selection.
从选卡开始。
Lenders often aggressively advertise perks like cash back, travel miles, and discounts.
发卡机构经常大力宣传返现、旅行里程和折扣等福利。
But these offers only seem generous.
但这些优惠只是看起来慷慨。
In reality, only a small portion of cardholders actually benefit— those who pay off their entire balance every month.
实际上，只有一小部分持卡人真正受益——那些每月全额还清账单的人。
But according to one survey, 46% of American cardholders carry a revolving balance.
但根据一项调查，46%的美国持卡人会有循环余额。
For these users, the cost of interest and fees almost always exceeds the value of rewards.
对这些用户来说，利息和费用的成本几乎总是超过奖励的价值。
If you think you may fall into this category, financial experts recommend getting a card with the lowest annual percentage rate, or APR.
如果你认为自己可能属于这类人群，金融专家建议选择年利率（APR）最低的卡。
This number is essentially the cost of borrowing money from the credit card company.
这个数字本质上是从信用卡公司借钱的成本。
You pay that cost through interest charges, which kick in as soon as you carry any balance past a statement due date.
你通过支付利息来承担这个成本，一旦你在账单到期日后仍有未还余额，利息就会开始计算。
While APRs are listed as yearly rates, for most cards, interest accrues daily.
虽然年利率是按年列出的，但对于大多数卡来说，利息是每日累积的。
For example, a card with a 35% APR charges about 0.095% interest per day.
例如，一张年利率35%的卡每天收取约0.095%的利息。
So a revolving balance of $1,000 would accumulate approximately $29 in interest over a month.
因此，1000美元的循环余额在一个月内会产生大约29美元的利息。
Meanwhile, a card with a lower APR, say 18%, would charge about $15 in interest during the same period.
与此同时，一张年利率较低（比如18%）的卡在同一时期只会产生约15美元的利息。
This difference can add up over time.
这种差异会随着时间的推移而累积。
If you were to make a $50 monthly payment towards that $1,000 balance, the card with the higher APR would take an extra $325 and an extra seven months to pay off.
如果你每月为那1000美元的余额支付50美元，年利率较高的卡将需要额外支付325美元，并多花七个月才能还清。
And interest fees can be even more complicated.
而利息费用可能更加复杂。
If you carry a balance and actively use a card, new purchases start accruing interest immediately, even if you pay off those purchases before the statement date.
如果你有未还余额并继续使用信用卡，新的消费会立即开始计息，即使你在账单日前还清了这些消费。
In other words, once you start to carry a balance, it’s much more difficult to avoid interest charges going forward.
换句话说，一旦你开始拖欠余额，往后想避免利息费用就难多了。
And even after a bill is fully paid, you might still get one more charge, something called residual interest, for the days between your statement and payment date.
而且即使账单全部付清，你可能还会收到一笔额外费用，叫做残留利息，针对账单日和还款日之间的天数。
Low APR cards are the best option for minimizing these interest charges; however, be wary of cards that offer exceptionally low APR for an introductory period.
低年利率信用卡是减少这些利息费用的最佳选择；但要警惕那些在推广期提供超低年利率的卡。
These flashy offers can mask things like complicated fee structures, steep late charges, and high default APRs that kick in once the introductory period ends.
这些花哨的优惠可能掩盖复杂的收费结构、高额滞纳金，以及推广期结束后生效的高违约年利率。
While many countries require companies to disclose these conditions, they're often buried in the fine print.
虽然许多国家要求公司披露这些条款，但它们通常隐藏在细则里。
Payment structures can also be confusing.
还款结构也可能让人困惑。
For example, many people mistake the minimum payment as the standard or even recommended amount to pay.
例如，很多人误以为最低还款额是标准甚至建议的还款金额。
In reality, it typically only covers interest, fees, and a small percentage of the balance.
实际上，它通常只覆盖利息、费用和一小部分本金。
As a result, sticking to just the minimum payment can make even a low balance of $1,000 take over 18 years to pay off.
因此，只还最低还款额的话，即使区区1000美元的欠款也可能需要超过18年才能还清。
Paying the full card balance each month is the best way to avoid fees and actually benefit from rewards.
每月全额还清信用卡欠款是避免费用并真正享受奖励的最佳方式。
But it's not always possible.
但这并不总是能做到。
So what should you do if you find yourself in credit card debt?
那么，如果你发现自己陷入信用卡债务该怎么办？
The first step is to assess your finances and create a repayment plan.
第一步是评估财务状况并制定还款计划。
If the debt is on a high APR card, transferring your balance to a lower APR card may help.
如果债务来自高年利率信用卡，将余额转移到较低年利率的卡上可能有帮助。
Just be sure to check for balance transfer fees.
但务必确认是否有余额转账费。