Preventive substance
[医] 介体
🧩 词语组成解析
preventive
[pri'ventiv, pri:-]
n. 预防;防止;预防措施;预防药;
adj. 预防的;防止的;
🗣️ 情景例句
I generally go to bed at ten.
我通常十点钟睡觉。
It is never too old to learn.
为学不怕年高。
Latham, however, did not give up easily.
但是莱瑟姆不肯轻易罢休。