Ecosystems
n. <生>生态系统( ecosystem的复数形式 )
🗣️ 情景例句
He will say so, and you may disagree with him too - politely, of course!
你也可能会不同意他的看法——当然，你应该礼貌地告诉他。
You need to transfer at central station.
你必须在中央车站换车。
Good morning!
早上好！