Alcidae
海雀科
🗣️ 情景例句
This situation permits no delay.
在这种情况下，不允许有任何拖延。
All things must come to an end.
天下无不散的筵席。
it is quite reasonable to regard the sea floor as the basic form of the crust of the earth,
因此完全有理由把海床看作地壳的基本模壳，