Hubl's reagent
[機] 許布爾試劑
?? 詞語組成解析
reagent
[ri(:)'eid??nt]
n. 反應物，試劑;
??? 情景例句
I know. How old is she?
我知道。她多大了？
I am sorry to keep you waiting.
真抱歉，讓你久等了。
who put his questions to nature instead of to the ancients,
他向自然界而不是向古人提出問題，