英语单词大全

background level

/ˈbækɡraund ˈlevl/

中文翻译

本底水准

最近更新

更新时间：2026-06-08 13:28:56

acetylorthocumaric acid

descriptive embryology

clean letter of credit

undigested stool

make it up with sb

binary state variable

erythorbic acid

autonomous product business