Trifluoro
三氟醚
🗣️ 情景例句
Thank you. The address is No.44 Changning Road.
谢谢你，地址是长宁路19号。
This nation is noted for its economic stability.
这个国家以经济稳定闻名。
While John Gilbert was in hospital, he asked his doctor to tell him whether his operation had been successful,
当约翰。吉尔伯特住院的时候，他问医生他的手术是否成功，