Photelometer
[医] 光电比色计
🗣️ 情景例句
You didn't ruin my day, Dad.
你没有扫我的兴， 爸爸。
I would like to call a carpenter to come this afternoon.
我要叫一个木匠今天下午来。
People are always talking about 'the problem of youth'.
人们总是在谈论“青年问题”。