🗣️ 情景例句
He never speaks unless he is spoken to.
除非别人先对他开口，他从不先开口。
We're all anxious to hear Mr. Jones'remarks.
我们都很急切地想倾听琼斯先生的讲话。
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，