1N-COUNT 牡蛎;蚝 An oyster is a large flat shellfish. Some oysters can be eaten and others produce valuable objects called pearls. 牡蛎;蚝
He had two dozen oysters and enjoyed every one of them.
他吃了两打牡蛎,每一只都吃得津津有味。
2PHRASE 世界是属于…的;尽可做想做之事(或去想去之处) If you say that the world is someone's oyster, you mean that they can do anything or go anywhere that they want to. 世界是属于…的;尽可做想做之事(或去想去之处)
You're young, you've got a lot of opportunity. The world is your oyster.