Calloy
铜镍硅合金
🗣️ 情景例句
Now, tell me, what's the problem?
啊， 告诉我 有什么问题？
I meet the boy whose aunt is a TV announcer.
我遇到那个男孩的姑妈是电视播音员。
No one noticed the boy as he crept off.
当男孩从船里爬出来时，谁也没有发现他。