Nontoxicity
无毒性
🗣️ 情景例句
I certainly am. May I help you?
我是，我能帮您什么忙吗？
If you look up, you can see the airplanes.
抬头看，你看到飞机了吧。
He didn't often go to look for food himself.
他不经常自己去寻找食物。