Atsdr
abbr. Agency for Toxic Substances and Disease Registy 有毒物质和疾病登记代理
🗣️ 情景例句
I'm twenty-nine.
我二十九岁。
Yes,I have both your hat and your coat.
不，你的帽子和大衣都在我这里。
He gets the solid shape, as it were, inside his head----
可以这样说，他脑子里得到的是一个立体的概念，