Agroecosystem
n. 農(nóng)業(yè)生態(tài)系統(tǒng)
??? 情景例句
I'm sorry. I missed that.
對(duì)不起，我沒聽清。
It is never too old to learn.
為學(xué)不怕年高。
This price is quite a bit higher than it was last time.
這次的價(jià)格比上次要貴了一些。