Xrs
abbr. X-ray sensitive X-射線敏感的
??? 情景例句
If you're under twenty-one years of age ...
如果你還不到二十一歲……
Early to bed and early to rise,makes a man healthy,wealthy and wise.
早睡早起，使人健康、富有而聰明。
You're impossible.
你真不可救藥。