Bortam
[冶]硅硼钛铝锰合金
🗣️ 情景例句
I'm an exchange student.
我是一名交换学生。
A man cannot whistle and drink at he same time.
一心不能二用。
One of links in the chain that drives the wheels had snapped.
驱动轮子的链条断了一节。