Xrf
abbr. X-ray fluorescence X射线荧光
🗣️ 情景例句
you have a meeting with the production staff
要与生产部门人员开会，
Selt-trust is the essence of heroism.
自信是英雄的本色。
Some of us do not know much about the theatre.
我们中有些人还不太懂戏剧。