Catchment
n. 排水區(qū), 集水, 流域
??? 情景例句
Do you?
你會(huì)嗎？
Why didn't you do it?
為什么你不做？
Last week No.14 Middle School held a sports meeting on the playground.
上星期第十四中學(xué)在操場舉行了一次運(yùn)動(dòng)會(huì)。