1
the world is one's oyster
表示一切尽在掌握，机会无限。
Since he graduated, the world is his oyster.
自从他毕业以后，世界就在他手中。
牡蛎，蚝
oysters — plural of oyster
先理解核心含义，再看它在真实句子里的用法。
牡蛎，蚝
a marine mollusk with a rough irregular shell, found on seabeds, often eaten
Since he graduated, the world is his oyster.
自从他毕业以后，世界就在他手中。
某些海洋双壳类软体动物,尤其是牡蛎科的(真正的牡蛎),通常附着在海岸浅水区的岩石或其他固定物上,或在河口的半咸水中。
Any of certain marine bivalve mollusks, especially those of the family Ostreidae (the true oysters), usually found adhering to rocks or other fixed objects in shallow water along the seacoasts, or in brackish water in the mouth of rivers.
海洋软体动物,壳粗糙不规则,栖于近海海底
marine mollusks having a rough irregular shell; found on the sea bed mostly in coastal waters
禽类背部下部骨头两侧小腔内的精致牡蛎形深色肉块。
The delicate oyster-shaped morsel of dark meat contained in a small cavity of the bone on each side of the lower part of the back of a fowl.
牡蛎肉
edible body of any of numerous oysters
I ordered a dozen fresh oysters at the seafood restaurant.
我在海鲜餐厅点了一打新鲜牡蛎。
The pearl inside the oyster is a beautiful gem.
牡蛎内部的珍珠是一颗美丽的宝石。
He shucked the oyster skillfully with a small knife.
他用一把小刀熟练地撬开了牡蛎。
表示一切尽在掌握，机会无限。
Since he graduated, the world is his oyster.
自从他毕业以后，世界就在他手中。
形容词常用于描述牡蛎的新鲜程度或烹饪方式。
She ordered a dozen fresh oysters.
她点了一打新鲜牡蛎。
Not this
I ate oyster for dinner.
Use this
I ate an oyster for dinner.
英语中oyster是可数名词，单数形式前需加冠词a或an，或使用复数形式。中文学习者常因母语影响而忽略冠词，导致错误。
Not this
Please add some oyster to the soup.
Use this
Please add some oyster sauce to the soup.
oyster指贝类动物，而oyster sauce是蚝油，一种调味品。中文学习者误将两者等同，应使用正确的名词短语表达调料。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
牡蛎吧，生蚝吧
We went to an oyster bar for fresh seafood.
我们去了一家牡蛎吧吃新鲜海鲜。
牡蛎壳
She collected oyster shells on the beach.
她在海滩上收集牡蛎壳。
蚝油
Add a tablespoon of oyster sauce to the stir-fry.
在炒菜中加入一汤匙蚝油。
珍珠牡蛎
Pearl oysters are cultivated for their gems.
珍珠牡蛎因其宝石而被养殖。
平菇，蚝菇
Oyster mushrooms are delicious in soups.
平菇在汤里很好吃。
生牡蛎
He enjoys eating raw oysters with lemon.
他喜欢吃加柠檬的生牡蛎。
世界尽在掌握
With a degree from a top university, the world is your oyster.
拥有顶尖大学的学位，世界尽在你掌握之中。
时间到了，海象说，来谈论许多事情：鞋子、船、封蜡、卷心菜、国王，以及为什么海水滚烫，还有猪是否长翅膀。
The Walrus and the Carpenter walked on a mile or so, and then they rested on a rock.
海象和木匠走了一英里左右，然后在一块岩石上休息。
世界是我的牡蛎。
With his new degree, he feels the world is his oyster.
有了新学位，他觉得世界尽在掌握。
Use oysters naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
想象牡蛎（oyster）紧闭双壳，像沉默者一言不发，发音类似‘奥伊斯特’，可谐音‘蚝一斯特’，把‘蚝’记住。
语域：neutral 常见场景：seafood menu、marine biology、culinary arts 作为“牡蛎”义时，通常用于正式或中性语境，如菜单、生物学或烹饪描述。
Words ending in -ster: cloister shares the same stressed vowel /ɔɪ/ and ending /stər/ with oyster, so they rhyme. Other words like lobster, monster, foster, roster, poster have the same -ster ending but different stressed vowels, so they do not rhyme with oyster.
Dictionary facts from ECDICT, WIKTIONARY.