Beaudouin's reagent
[化] 博杜安試劑
?? 詞語(yǔ)組成解析
reagent
[ri(:)'eid??nt]
n. 反應(yīng)物，試劑;
??? 情景例句
He said I should call him.
他說(shuō)我可以打電話給他。
How old?
多老？
He found it very difficult to get to sleep and he was rather angry with the man upstairs.
他覺(jué)得這樣很難入睡， 他對(duì)樓上的人相當(dāng)生氣。