Xrf
abbr. X-ray fluorescence X射线荧光
🗣️ 情景例句
How much time will it take for my mail to get to where it is going?
我的信件到达它要去的地方要用多少时间？
In prosperity caution, in adversity patience.
处顺境时要小心，处逆境时要耐心。
Born a free man, he was now in chains.
他生来本是个自由人，如今却戴上了镣铐。