Nonpolluting
a. 不会引起污染的
🗣️ 情景例句
Good morning, Mr. Zhou. Take a seat, please. What can I do for you?
早上好，周先生。请坐。有什么事吗？
Would you please hold the door open for me?
请您为我打开门？
OK. While you're doing that I'll go and get some water.
好的。你系小树，我去弄点水来。