These are all words for a cover for a container. 以上各词均指容器的盖、盖子。

• lid a cover over a container that can be removed or opened by turning or lifting it 指容器的盖、盖子：◆a jar with a tight-fitting lid 盖子很紧的广口瓶
• top a thing that you put over the end of sth such as a pen or bottle in order to close it 指笔帽、瓶盖、瓶塞
• cork a small round object made of cork or plastic that is used for closing bottles, especially wine bottles 指尤用于酒瓶的软木塞、塑料瓶塞
• cap (often in compounds) a top for a pen or a protective cover for sth such as the lens of a camera （常构成复合词）指钢笔、照相机镜头等的盖、帽
• plug a round piece of material that you put into a hole in order to block it; a flat round rubber or plastic thing that you put into the hole of a sink in order to stop the water from flowing out 指栓塞、堵塞物、水池的塞子：◆a bath plug 浴缸塞子

Patterns

• a tight-fitting lid/top/cap
• a screw top/cap
• a pen lid/top
• to put on/screw on/take off/unscrew the lid/top/cap
• to pull out the cork/plug