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N-COUNT
（木头、金属或塑料制成的）大环，大圈
A hoop is a large ring made of wood, metal, or plastic.
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（槌球游戏中的）拱门
In croquet, the hoops are the small metal arches which players hit the ball through.
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（篮球运动中的）篮圈，篮筐
A basketball hoop is the ring that players try to throw the ball into in order to score points for their team.
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PHRASE
（为取悦他人或达到目的而）经受苦难，作出很大努力
If someone makes you jump through hoops, they make you do lots of difficult or boring things in order to please them or achieve something.
例句
He had the duty receptionist almost jumping through hoops for him. But to no avail.
值班的接待员几乎为他费尽了力气，但还是没用。