Atsdr
abbr. Agency for Toxic Substances and Disease Registy 有毒物質(zhì)和疾病登記代理
??? 情景例句
and making it a new community center.
使它成為一個新的社區(qū)中心。
The view was terrific.
景色美極了。
I was walking home when I met Dave.
我碰到大衛(wèi)時，我正往家走。