Metalsorter
金属鉴别仪
🗣️ 情景例句
I want to put some of my good hangers in Grandpa's closet.
我想在爷爷的衣橱 放几个好的衣架。
When did you ener the school?
你什么时候入学的？
For one thing they keep the water clean.
一来，水下植物可以保持水的清洁。