Billon
n. 比朗金(或银)合金
🗣️ 情景例句
Go inside the Information Center.
到服务中心去。
I must say that I'm a little at a loss as to how to introduce them.
我必须表明对于如何介绍他们，我有点不知所措。
With a smile the man from downstairs said: I'm sorry to trouble you, comrade.
“对不起，打扰你了，同志。”