Eftir
abbr. emission Fourier transform infrared spectrometer 发射式傅里叶变换红外分光仪
🗣️ 情景例句
Thanks, Grandpa.
谢谢你， 爷爷。
When did you get up yesterday morning?
你昨天早上几点起床？
THE LOST BOOK
一本丢失的书