Nanogram
[化] 纳克
🗣️ 情景例句
A piece of chewing gum stuck to my shoe.
一片口香糖粘在我的鞋上。
You won't believe it,but it was really cheap.
你不会相信的，但这条裤子确实很便宜。
I don't think you are right.
我认为你是不对的。