Prepnet
[计] 宾夕法尼亚研究及经济伙伴网络
🗣️ 情景例句
You have a good command of English.
你的英语水平很好。
A policeman pricks up his ears.
一个警察竖起耳朵在认真地听着。
Yes, there must be over two hundred here.
是呀，这儿一定有200多张。