Hard acid
[机] 硬酸
🧩 词语组成解析
hard
[hɑrd]
adj. 困难的;硬的;有力的;努力的;
adv. 努力地;猛力地;严重地;沉重地;
n. 英〉硬海滩，登陆处;
🗣️ 情景例句
Maybe I can help. Tell me what it is, Susan.
也许我能帮忙。说给我听听 ，Susan。
It is wisdom sometimes to seem a fool.
大智若愚。
In the library she has got books on many different subjects.
在图书馆里她准备了各种科目的书籍。