beetroot
noun [ C or U ] UK uk/ˈbiːt.ruːt/ us/ˈbiːt.ruːt/ (US beet)
甜菜根
the small, round, dark red root of a plant, eaten cooked as a vegetable, especially cold in salads
Idiom
go/turn beetroot (red)idiom UK (also go as red as a beetroot); (US go beet red); (go as red as a beet) （因为尴尬）脸色绯红
to have a red face because you are embarrassed
Whenever I talked about his past life, he would go beetroot. 每当我说起他过去的生活时，他都满脸通红。