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1·The boat rolled heavily in the troughs between the waves.

小船在海浪间的波谷中剧烈地摇晃着。《柯林斯英汉双解大词典》

2·There have been peaks and troughs in the long-term trend of unemployment.

长期以来失业率一直时起时伏。《牛津词典》

3·Some of the bars and troughs are exposed by low tide.

一些砂洲和沟槽在低潮位时，露出于水面。

4·In the night use electricity troughs to charge, also can reduce costs.

在夜间利用用电低谷期进行充电，也可以减少费用。

5·Dark green swells, slate-gray in the troughs, rolled in from a heaving horizon.

一排排暗绿色的大浪带着灰白的浪花从远处滚滚而来。

6·The main units are single-wheeled and retract into wheel troughs in the fuselage.

主单元是单轮并收起到机身下轮槽中。

7·A crater with such troughs has never been seen before anywhere in our Solar System.

具有如此低谷的陨石坑在我们太阳系内还从未发现过。

8·Individual jet maxima are frequently found at the tips of deep low-pressure troughs.

某些急流其最大风速中心常发现位于深低压槽的底端。

9·Jack: Yes! And at Banks, drive-troughs are not the place to discuss banking problems.

杰克：对！在银行里的“得来速”，也不是讨论银行这样或那样的问题。

10·Horse feed and water troughs should be relocated to areas away from where bats feed or roost.

应改换马的饲料槽和饮水槽位置，使它们远离蝙蝠进食或栖息的地方。

(1)water trough水槽；饮水槽

(1)wave trough波谷