Aithioic acid
[機] 二硫羧酸
?? 詞語組成解析
??? 情景例句
This small child is quite self-centered. Maybe he is spoiled by his family.
這個小孩挺以自我為中心的，可能是被家人寵壞了。
Please hurry, we're a bit pressed for time.
請快點，我們時間不多了。
I was on the march.
我參加了游行。