Nonpolluting
a. 不会引起污染的
🗣️ 情景例句
John proposed marriage to Helen.
绚翰向沦论求婚。
There is life in the old dog yet.
老当益壮。
How extraordinary! I said. I think someone has been carving animals.
“多么神奇啊！”我说，“我想有人一直在刻这些动物。”