Erbium
n. 铒\\n[化] 铒
🗣️ 情景例句
John is tied up at the present time.
John现在有事。
Fine words dress ill deeds.
漂亮的言词可以掩饰恶劣的行为。
He telephoned the office yesterday morning and yesterday afternoon.
他昨天上午和下午把电话打到了我的