Atsdr
abbr. Agency for Toxic Substances and Disease Registy 有毒物质和疾病登记代理
🗣️ 情景例句
It was my pleasure.
这是我的荣幸。
To commute to work
上班工作
You've got lots of old buildings in your country.
你们国家有许多古老的建筑物。