1
a bear
bear 在此为可数名词，指熊；单数前需加 a/an/the，复数形式为 bears。
A bear appeared in the garden.
一只熊出现在花园里。
熊
bears — plural of bear
先理解核心含义，再看它在真实句子里的用法。
熊
A large, heavy mammal with thick fur and a short tail
A bear appeared in the garden.
一只熊出现在花园里。
大型、通常杂食的哺乳动物,毛粗、尾短、足平
A large, generally omnivorous mammal (a few species are purely carnivorous or herbivorous) of the family Ursidae; having shaggy fur, a very small tail, and flat feet.
大型的平足肉食或杂食哺乳动物,毛发长且爪子强壮
massive plantigrade carnivorous or omnivorous mammals with long shaggy coats and strong claws
粗鲁、无礼、不文明的人
A rough, unmannerly, uncouth person.
对市场持悲观态度的投资者；预期价格下跌而选择现在卖出以便以后以更低价格买入的投资者
an investor with a pessimistic market outlook; an investor who expects prices to fall and so sells now in order to buy later at a lower price
The bear caught a salmon in the river.
那只熊在河里抓了一条鲑鱼。
We watched two bears playing in the meadow.
我们看到两只熊在草地上玩耍。
A bear can run surprisingly fast despite its size.
尽管体型庞大，熊跑起来却出奇地快。
bear 在此为可数名词，指熊；单数前需加 a/an/the，复数形式为 bears。
A bear appeared in the garden.
一只熊出现在花园里。
名词 bear 可直接修饰另一个名词，如 bear market，表示行情下跌、投资者看空的市场；相反说法是 bull market（牛市）。
Investors are preparing for a bear market.
投资者正在为熊市做准备。
口语中 a bear 可指粗鲁、脾气不好的人；这里不是指动物，而是形容人的态度。
Don't talk to him before coffee; he is a bear.
喝咖啡前别跟他说话，他像只熊一样暴躁。
Not this
There are many bear in the forest.
Use this
There are many bears in the forest.
中文名词没有复数形式，学习者容易省略英语可数名词的复数词尾 -s。bear 是可数名词，复数形式为 bears，表示多只熊时必须加 -s。
Not this
I saw bear in the zoo.
Use this
I saw a bear in the zoo.
中文没有冠词，学习者常漏掉单数可数名词前的不定冠词 a/an。bear 是单数可数名词，首次提到时需用 a 表示“一只”。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
北极熊
The polar bear is a powerful swimmer.
北极熊是强壮的游泳者。
灰熊
We saw a grizzly bear near the river.
我们在河边看到一只灰熊。
黑熊
The black bear ate berries in the forest.
黑熊在森林里吃浆果。
熊崽
The bear cub followed its mother.
小熊跟在妈妈后面。
熊市
Investors became cautious during the bear market.
投资者在熊市期间变得谨慎。
熊市；下跌行情
Many investors sold their stocks because they feared a bear market.
许多投资者因担心熊市而抛售股票。
熊抱；紧抱
He gave his son a big bear hug.
他给了儿子一个大大的熊抱。
情绪很差；脾气暴躁
He's been like a bear with a sore head all morning.
他一上午都脾气暴躁。
我是一只没头脑的熊。
The brown bear caught a salmon in the river.
棕熊在河里抓到了一条三文鱼。
熊翻过了山，去看看他能看到什么。
A bear can run faster than you might think.
熊跑起来比你想象的要快。
发短 /ɛ/ 音 (如 head, bread)
Use bears naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
看到 bear 里有 ear（耳朵），记住熊的耳朵小；熊爪向下拍，股市里 bear 是看跌的空头。
语域：neutral 常见场景：日常对话、科普文章、儿童读物、动物园标识 作为“熊”这一义项，该词为中性常用名词，正式与非正式场合都很自然；在口语、科普和儿童读物中都比较常见。
可数名词
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.
Watch the sound change