名词

1. (喂家畜的)饲料槽，饮水槽
A trough is a long narrow container from which farm animals drink or eat.

2. (两个大浪之间的)波谷
A trough is a low area between two big waves on the sea.

3. (商业活动等的)淡季，低谷
A trough is a low point in a process that has regular high and low points, for example a period in business when people do not produce as much as usual.

4. 低压槽
A trough of low pressure is a long narrow area of low air pressure between two areas of higher pressure.

1. a channel along the eaves or on the roof
collects and carries away rainwater

Synonym: gutter

2. a container (usually in a barn or stable) from which cattle or horses feed

Synonym: manger

3. a long narrow shallow receptacle

4. a narrow depression (as in the earth or between ocean waves or in the ocean bed)

5. a treasury for government funds

Synonym: public treasurytill

6. a concave shape with an open top

Synonym: bowl