crown jewel
.crown 'jewel
n[C]
the crown jewels
the crown, sword, jewels etc worn by a king or queen for official ceremonies
the best or most valuable thing that a person or place has
Innsbruck's crown jewel is the old town centre.
1. He is heir to the crown. 他是王位继承人。
2. Yes,he opened the safe and took away all my jewel. 是的,他打开保险箱拿走了我所有的珠宝.
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