“熔炉”造句

这个共和国是多民族的大熔炉。
The republic is a melting pot of different nationalities.

这回他又出人意外地在他的小熔炉边干起活儿来.
We will say that he was unexpectedly found at his forge again.

它们最初必然象面包的外皮和熔炉里的渣块.
They must have appeared first as crusts and clinkers.