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
What'd you have in mind?
你心里有什么打算？
If he doesn't tell him, I will.
如果他不，我将告诉他。
Your Chinese is really surprising.
你的中文令人惊讶。