Micromolar
（浓度）微克分子
🗣️ 情景例句
The speed limit here is 60 miles an hour.
这儿限速为每小时六十英里。
Have you somewhat to do tomorrow,do it today.
明天如有事，今天就去做。
To escape from the Earth in a rocket, one must travel at seven miles per second.
要乘坐一枚火箭飞离地球，火箭的速度要达到每秒7英里，