各方关注美国的债务级别

词汇讲解：

1. commodity n. 商品, 货物
例句：The prices of the commodities are quite stable this year.
今年各种物价相当稳定。

2. tick v. 发滴答声
例句：The clock ticked louder and louder in a quiet room.
钟的滴答声在静静的房间里变得越来越响。

3. potential adj. 潜在的, 有可能的
例句：It's important to draw out a child's potential capacities.
发掘孩子的潜在能力是很重要的。

4. acknowledge vt. 承认, 供认
例句：He grudgingly acknowledged having made a mistake.
他勉强承认他做错了。

5. default vi. 违约; 拖欠债务
例句：He defaulted in his payments on the loan.
他没有按期偿还贷款。

6. far-reaching adj. 深远的;广泛的
例句：The practice had far-reaching environmental consequences.
这种做法对环境造成了深远的影响。

7. irrelevant adj. 不相干的,不相关的
例句：Her statement is irrelevant to this case.
她的陈述与这件事无关。

8. yield n. 产量, 收益
例句：The yields on his shares have increased in this year.
今年他的股票红利增加了。

9. subdued adj. 不大兴奋、不甚感兴趣等的
例句：There is a subdued atmosphere in the school at exam time.
在考试期间，学校里有一种压抑的氛围。

10. deadline n. 最后期限
例句：Next week is the deadline for sending in your application.
呈递申请书的截止日期是下星期。

11. fix vt. 安排; 决定, 确定
例句：I will fix the same room for you.
我会给你安排同样的房间。