Erbium
n. 铒\\n[化] 铒
🗣️ 情景例句
Yes. Yes, sir.
是的。是的。
One thorn of experience is worth a whole wilderness of warning.
一次痛苦的经验抵得上千百次的告诫。
Were you at butcher's, too?
您也在肉店里吗？