hoop
noun [ C ] uk/huːp/ us/huːp/
环;圈;半圈
a ring of wood, metal, or plastic
The dogs had been trained to jump through hoops. 这些狗受过跳圈训练。
(also hoop earring)圆形耳环
a ring-shaped earring (= a piece of jewellery that hangs from the ear)
She was wearing large gold hoops in her ears. 她耳朵上戴着一副大大的金耳环。
Idiom
go/jump through hoopsidiom 历经磨难
to do a lot of difficult things before you are allowed to have or do something you want