Albaloy
电解沉淀用合金, 铜锡锌合金
🗣️ 情景例句
What guarantee do I have that it won't break down easily?
有什么保障它不会轻易出故障？
You have a younger brother, don't you?
你有个弟弟，是吗？
The teacher got a little angry.
老师有点生气了。