Thumbmark
n. 拇指痕
🗣️ 情景例句
Or someone can sign with us as a guarantor.
或者有人能当担保人帮我们签字。
This is a typewiter.
这是一台打字机。
below 20 per cent, its bactericidal action is negligible.
浓度低于20％时，杀菌能力基本上就不存在了。