Atsdr
abbr. Agency for Toxic Substances and Disease Registy 有毒物质和疾病登记代理
🗣️ 情景例句
What are you working on?
你在干什么？
We've got to get a sofa and a chair for the living room.
我们必须有一张沙发和椅子放在客厅。
He prepared the speech carefully and went to the wedding with Jenny.
他认真准备了讲稿，带着珍妮一道去参加了婚礼。