Doas
abbr. differential optical absorption spectroscopy 微分吸收光谱分析法
🗣️ 情景例句
How can I reward your help?
我怎样才能报答你的帮助呢？
Excuse me to have troubled you.
对不起麻烦你。
OK, I'll have a look.
好吧，我去看看。