1
a grapefruit
grapefruit 是可数名词，指单个水果时前面用 a。
I ate a grapefruit for breakfast.
我早餐吃了一个葡萄柚。
葡萄柚
先理解核心含义，再看它在真实句子里的用法。
葡萄柚
a large round citrus fruit with thick yellow skin and juicy, slightly sour flesh; also the tree that bears it
I ate a grapefruit for breakfast.
我早餐吃了一个葡萄柚。
葡萄柚树,柚与甜橙的杂交种。
The tree of the species Citrus paradisi, a hybrid of Citrus maxima and sweet orange.
柑橘树,结大而可食的圆形果实,皮厚黄,果肉多汁略酸
citrus tree bearing large round edible fruit having a thick yellow rind and juicy somewhat acid pulp
该树所结的大型球形酸味果实。
The large spherical tart fruit produced by this tree.
大型黄色水果,果肉多汁略酸,通常半个为一份
large yellow fruit with somewhat acid juicy pulp; usual serving consists of a half
I usually eat half a grapefruit with breakfast.
我早餐通常吃半个葡萄柚。
She cut the grapefruit into slices and sprinkled sugar on top.
她把葡萄柚切成片，并在上面撒了糖。
These grapefruits are quite sour, so we added honey to the juice.
这些葡萄柚很酸，所以我们在果汁里加了蜂蜜。
grapefruit 是可数名词，指单个水果时前面用 a。
I ate a grapefruit for breakfast.
我早餐吃了一个葡萄柚。
复数形式为 grapefruits。
She bought three grapefruits at the market.
她在市场买了三个葡萄柚。
作定语修饰名词时用单数形式，如 grapefruit juice。
Grapefruit juice is a bit sour.
葡萄柚汁有点酸。
Not this
I ate too much grapefruits yesterday.
Use this
I ate too many grapefruits yesterday.
grapefruit 是可数名词，复数形式是 grapefruits；表示数量“多”时，修饰可数名词要用 many，much 只能修饰不可数名词。
Not this
Grapefruit is a kind of grape.
Use this
Grapefruit is a kind of citrus fruit.
grapefruit（葡萄柚）虽然含有 grape，但并不是葡萄，而是柑橘类水果；不要因为词形相似就按字面理解为“葡萄的一种”。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
葡萄柚汁
She drinks a glass of grapefruit juice every morning.
她每天早上喝一杯葡萄柚汁。
葡萄柚果肉瓣
He added grapefruit segments to the fruit salad.
他在水果沙拉里加了葡萄柚果肉瓣。
半个葡萄柚
I usually eat half a grapefruit at breakfast.
我早餐通常吃半个葡萄柚。
葡萄柚减肥法
The grapefruit diet helped her lose a few pounds.
葡萄柚减肥法帮她减掉了几磅。
葡萄柚勺
Use a grapefruit spoon to scoop out the flesh easily.
用葡萄柚勺可以轻松挖出果肉。
葡萄柚
Yoko Ono's 1964 artist's book Grapefruit is a collection of instruction-like poems and is regarded as a key work of conceptual and Fluxus art.
小野洋子1964年的艺术家书《葡萄柚》是一本类似指示诗的作品集，被誉为观念艺术和激浪派艺术的重要作品。
葡萄柚是一颗有了机会并抓住机会的柠檬。
This humorous anonymous definition plays on the double meaning of 'lemon'—both the fruit and a flawed thing—suggesting that a grapefruit is a lemon that improved its situation.
这句幽默的匿名定义利用了“lemon”的双关——既指柠檬这种水果，也指有缺陷的事物——暗示葡萄柚是一颗改善了处境的柠檬。
Use grapefruit naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
记作：grapefruit = grape + fruit，想象一串葡萄那么大的柚子，皮厚味酸。
语域：neutral 常见场景：超市选购水果时、阅读食谱或营养信息时、园艺或植物学介绍中 “grapefruit”是中性常用词，通常指葡萄柚这种水果或其树；多用于日常购物、饮食和一般性介绍，正式场合也可使用。
读音对应：grape 和 grapevine 的 grape 都读 /ɡreɪp/；fruit、breadfruit 和 grapefruit 末尾的 -fruit 都含有 /uːt/（grapefruit 中常记作较短的 /frut/），brute /bruːt/ 也与它押韵。注意拼写相近的 graph /ɡræf/ 读音完全不同，别把 -ap- 读成 /æ/。
Dictionary facts from ECDICT, OCTANOVE, WIKTIONARY.