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a/an + ox
ox 是可数名词，单数前需要加 a/an 或 the；因 ox 以元音音素开头，所以用 an。
An ox was pulling the cart.
一头牛在拉车。
阉牛；犍牛；去势公牛
先理解核心含义，再看它在真实句子里的用法。
阉牛；犍牛；去势公牛
an adult castrated male of cattle, especially one used as a beast of burden
An ox was pulling the cart.
一头牛在拉车。
指阉割过的公牛，多用于干活或拉车。
An adult castrated male of cattle (B. taurus), especially when used as a beast of burden.
去势的成年公牛,尤指家牛
an adult castrated bull of the genus Bos; especially Bos taurus
Any bovine animal (genus Bos).
各种野生牛类,尤指牛属或近缘的Bibos属
any of various wild bovines especially of the genera Bos or closely related Bibos
The farmer used an ox to plow the fields.
农民用一头牛来耕地。
In ancient times, oxen were essential for agriculture.
在古代，牛对农业至关重要。
The ox pulled the heavy cart slowly.
这头牛缓慢地拉着沉重的车。
ox 是可数名词，单数前需要加 a/an 或 the；因 ox 以元音音素开头，所以用 an。
An ox was pulling the cart.
一头牛在拉车。
ox 的复数是不规则形式 oxen，不要写成 oxes；复数主语后接复数动词。
Oxen are grazing in the field.
牛在田野里吃草。
Not this
I saw three oxes in the field.
Use this
I saw three oxen in the field.
ox 的复数是不规则形式 oxen，而不是按常规加 -es 的 oxes。
Not this
The farmer used a bull to pull the plow.
Use this
The farmer used an ox to pull the plow.
ox 指去势后用于拉车或耕地的成年公牛；bull 指未去势的公牛，一般不作役畜，二者不能混用。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
一对同轭的牛
The farmer led a yoke of oxen across the field.
农夫赶着一对同轭的牛穿过田野。
牛车
They loaded the hay onto an ox cart.
他们把干草装上牛车。
挽牛；役用阉牛
Draft oxen are valued for their strength and patience.
挽牛因其力量和耐力而受到重视。
力大如牛，非常强壮
He is as strong as an ox after years of farm work.
经过多年的农活，他力大如牛。
野牛（野生牛类）
The gaur is a large wild ox found in South and Southeast Asia.
白肢野牛（gaur）是一种见于南亚和东南亚的大型野牛。
壮如牛；力大无穷
She may look small, but she is as strong as an ox and can lift the entire crate.
她看起来娇小，但壮得像头牛，能抬起整个箱子。
倔得像头牛；固执己见
He is as stubborn as an ox, so don't expect him to change his mind easily.
他倔得像头牛，所以别指望他轻易改变主意。
蠢笨如牛；非常笨
The character in the movie is as dumb as an ox but incredibly honest.
电影里的那个角色蠢笨如牛，却极其诚实。
牛在场上踹谷的时候，不可笼住它的嘴。
The farmer used an ox to pull the plow across the field.
农夫用一头牛在田间拉犁。
Use ox naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
O像牛角、X像牛鼻环，ox就是公牛；复数要记oxen，千万別加s。
语域：neutral 常见场景：farming and animal husbandry、zoology ox 在词典释义中多用于中性书面语境，比较常见于农耕、畜牧或动物学描述；实际表达中，指去势公牛或泛指牛类时通常可用 ox。本条目按中性词处理。
复数形式为oxen。
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.