Paleotopography
古地形
??? 情景例句
How good are you at using chopsticks?
你筷子用得怎么樣？
Then we'd have some idea of what you'll be needing.
那么我們就會心中有點兒數，知道你們需要什么了。
Mr. Smith knew Jack didn't look at the others because he was nervous.
史密斯先生知道杰克不敢看別人是因為緊張。