Xrf
abbr. X-ray fluorescence X射线荧光
🗣️ 情景例句
But it's not going to be easy.
不过这事可不容易。
Where (or While) there is life there is hope.
留得青山在，不怕没柴烧。
I'd like you to meat Dr Zhang.
我想让你见见张先生。