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1·In February, at 3.5 percent and 5.5 percent respectively, unemployment rates in Canada and the United States were at generational lows and worker shortages were everywhere.

2月份，加拿大和美国的失业率分别为3.5%和5.5%，达到了几代人以来的最低水平，工人短缺的情况随处可见。

2·Here, she talks about the highs and lows of her life.

此刻，她正谈论着自己生活中的酸甜苦辣。《柯林斯英汉双解大词典》

3·It saw the highs and lows of the Ming and Qing dynasties, and it plays a very important part in Chinese history.

它见证了明清两朝的盛衰，在中国历史上扮演着非常重要的角色。

4·Conversely, cycle to work days have done their job by creating pollution lows.

相反，“骑车上班”的日子创造了污染低值，效果明显。

5·Recent renewed surge of the dollar has helped send the pound and the French franc to new lows.

美元最近的重新增值使英镑和法朗下跌到新的低度。《新英汉大辞典》

6·Profits are off their lows.

银行利润已经脱离了低点。

7·But the lows can be extreme too.

但低潮也是极端的。

8·Corn prices are at two-year lows.

粮食的价格两年来最低。

9·Mortgage rates dropped to historic lows.

抵押利率下降到历史低点。

10·There were so many lows.

曾有过那么多的低谷期。

(1)low cost低成本，廉价的

(1)low temperature低温

(1)high and low到处；高低贵贱

(1)low price低价；廉价

(1)low pressure低气压；松懈

(1)low level低水平；低能级