🗣️ 情景例句
I woke up when I heard someone speak.
一听到有人说话我就醒了。
Mrs.Jones,this is Mr. John Smith.
琼斯夫人，这是约翰、史密斯先生。
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，