Milligamma
毫微克, 10的-9次方
🗣️ 情景例句
I am sure you would like to know more about it.
我相信您一定想知道详情。
You'd have a better chance of catching the train if you took a bus to the station instead of walking.
如果你不是步行而是乘公共汽车的话，那你就比较有可能赶上火车。
No, it's OK.
没有，还好着呢！