每使用一次信用卡，就增加了信用卡号码被欺诈使用的机会。
Every time you use a credit card, you increase the chances of that card number being used fraudulently.
会费约为10美元或者20美元，由雇主和雇员共同承担。 非会员每使用一次，需支付50美元。
There is a $10 or $20 co-payment fee for members, and nonmembers can use the services for $50 per session.
平均每使用一次油炸锅会用去整整一品脱的油，如果这些油只使用一次，每一锅油炸食品的成本几乎等于在餐馆吃一顿饭的价钱了。
The average deep fryer uses almost an entire quart of oil, and if it is only used once, the cost of a batch of fries can amount to just as much as an entire restaurant meal.
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