Hard residue
[化] 硬性残留物(未降解的表面活性剂)
🧩 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
Cutting the budget is fine,
削减预算是好的，
The remembrance of past sorrow is joyful.
记住过去的不幸使人愉快。
I think she is at home.
我想她在家里吧。