1、The demand for coal begins to slacken off in the spring.
煤的需求在春天開始減少。

2、We've been really busy, but things are starting to slacken off now.
近來我們的確很忙，不過現(xiàn)在情況開始有所緩解了。

3、You shouldn't slacken off in your study.
你不應該松懈你的研究。

4、Slacken off those ropes there, there's a storm coming!
把那些繩子放松，風暴就要來了。

5、We’ve been really busy, but things are starting to slacken off now.
我們忙極了，不過現(xiàn)在事情開始減少了。

6、The train must slacken off as it passes through a bridge
火車地橋時必須減速。

7、You can't slacken off because you know someone can take your place.
這讓你必須努力訓練，你不能松懈，因為有人打算搶走你的位置。