Agroecosystem
n. 农业生态系统
🗣️ 情景例句
but he has to work today,
但他今天工作忙，
I enclosed some photographs in my letter.
我在信封里装了一些相片。
Debbie's father will set out with her in a small boat.
黛比的父亲将乘一条小船同她一道出发。