cover 泛指所有的遮盖物。包括盖子或书籍、杂志的封面等。
lid 通常指可以揭开的如箱盖、坛盖、壶盖等盖子。
参考例句
1. Could you screw the lid off the jar? 你能把这瓶子的盖子给旋开吗?
2. Opening the lid, they find the man inside alive! 打开盖子之后,他们发现里面的人还活着!
3. I want to buy car cylinder lid, please with contact us. 我们需要求购汽车汽缸盖,请尽快与我们联系。
英英解释
n.
1. either of two folds of skin that can be moved to cover or open the eye
2. a movable top or cover (hinged or separate) for closing the opening of a container
3. headdress that protects the head from bad weather; has shaped crown and usually a brim