Edlefsen's reagent
[醫(yī)] 二硝基水楊酸試劑
?? 詞語組成解析
reagent
[ri(:)'eid??nt]
n. 反應(yīng)物，試劑;
??? 情景例句
Excuse me, ma'am.
對不起 夫人
It's nice meeting you.
很高興認(rèn)識你。
How often do you write?
你們隔多久寫信？