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a/an + noun + be + a/an + [category]
不定冠词 a/an 与单数名词连用，用于定义或介绍某类事物。
A harrier is a small hound used for rabbit hunting.
猎兔犬是一种用于猎兔的小型猎犬。
猎兔犬
先理解核心含义，再看它在真实句子里的用法。
猎兔犬
a hound similar to a foxhound but smaller, used for hunting rabbits
A harrier is a small hound used for rabbit hunting.
猎兔犬是一种用于猎兔的小型猎犬。
骚扰者。
One who harries.
一种中型猎犬,用于追踪野兔狩猎
A medium-sized dog breed of the hound class, used for hunting hares by trailing them.
鹞属(Circus)的几种猛禽,低飞于草地和沼泽上空,捕食小型哺乳动物或鸟类。
Any of several birds of prey in the genus Circus of the subfamily Circinae which fly low over meadows and marshes and hunt small mammals or birds.
跑步者,特指越野跑者。
A runner, specifically, a cross country runner.
The harrier picked up the scent and ran across the meadow.
那只猎兔犬嗅到气味，跑过了草地。
Harriers are friendly dogs that were bred to chase rabbits.
猎兔犬是一种友好的狗，它们被培育来追逐兔子。
A harrier needs plenty of exercise to stay healthy and happy.
猎兔犬需要大量运动才能保持健康和快乐。
不定冠词 a/an 与单数名词连用，用于定义或介绍某类事物。
A harrier is a small hound used for rabbit hunting.
猎兔犬是一种用于猎兔的小型猎犬。
定冠词 the 与单数名词连用可指整个物种或类别，常见于科普或描述性语境。
The harrier is a hawk that hunts over meadows and marshes.
鹞是一种在草地和沼泽上空捕食的鹰。
复数名词与被动语态 be used to do 连用，表示某物的用途。
Harriers are used to hunt rabbits.
猎兔犬被用来猎兔。
Not this
I saw three harrier in the field.
Use this
I saw three harriers in the field.
harrier 是可数名词，复数形式为 harriers。汉语名词没有复数变化，学习者易漏掉词尾 -s；three 后用复数。
Not this
This harrier is used for hunt rabbits.
Use this
This harrier is used for hunting rabbits.
介词 for 后需接动名词（V-ing）作宾语，不能用动词原形。hunting 才是正确形式。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
猎兔犬
The harrier hound is smaller than a foxhound but just as tireless.
猎兔犬比狐狸犬小，但同样不知疲倦。
一群猎兔犬
A pack of harriers chased the rabbit across the field.
一群猎兔犬在田野上追逐兔子。
泽鹞
A marsh harrier hovered above the reeds.
一只泽鹞在芦苇丛上空盘旋。
白尾鹞
The hen harrier glides low over the meadow.
白尾鹞在草地上低空滑翔。
Use harrier naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
把 harrier 联想成 hare（野兔）+ -ier，跟野兔有关的猎手：猎兔犬或鹞。
语域：neutral 常见场景：狩猎、观鸟、犬种介绍、鸟类学 这个词作名词时通常指两种事物：一种体型较小的猎兔犬，以及一种在草地和沼泽上空捕食小型动物的鹞。多用于狩猎、犬种介绍或观鸟/鸟类学等专门场合，日常口语中相对少见。
发音与 harrier /ˈhæriə(r)/ 押韵的词：carrier /ˈkæriə(r)/、barrier /ˈbæriə(r)/、farrier /ˈfæriə(r)/。注意：terrier /ˈteriə(r)/ 和 hairier /ˈheəriə(r)/ 结尾拼写相似，但元音不同，不押韵；harry /ˈhæri/ 少了末尾的 /ə(r)/，发音也不相同。
Dictionary facts from ECDICT, WIKTIONARY.