Microdetection
微量测定
🗣️ 情景例句
How much do you need?
你需要多少钱？
He's acomposer of serious music.I like his music a lot.
他是严肃音乐作曲家，我很喜欢他的音乐。
I'm very well, thank you.And you?
很好，谢谢你。你好吗？