in plain English/languagein clear and simple words, without using technical language 用简单的英语/语言 The document, written in plain English, tells you about your new policy. 这份文件用简明的英语写成,解释了你们的新政策。
in plain English/language• A weekly publication that analyzes some 1,700 different stocks, Value Line is written in plain language.• Our subsequent telephone conversation was a study in plain language, but McFarlane held his ground and made no apologies.
→ in plain English/language at plain1(1)