Doas
abbr. differential optical absorption spectroscopy 微分吸收光谱分析法
🗣️ 情景例句
when Max is ready to use it?
当Max长大能使用这手套时吗？
I asked him to pay, but he wouldn't.
我请他付账，但是他不肯。
Every solid object will reflect a sound, varying according to the size and nature of the object.
任何固体者反射声音，反射的声音因物体的大小和性质的不同而不同。