aren't

英 [ɑːnt]

美 [ɑːrnt]

are not 的常用口语形式; am not的口语形式，用于疑问句或附加疑问句中

Collins.4

牛津词典

short form

(are not 的常用口语形式）
Aren'tis the usual spoken form of 'are not'.
（am not的口语形式，用于疑问句或附加问句中）
Aren'tis the form of 'am not' that is used in questions or tags in spoken English.

You're quite a party animal aren't you, out there every night
你就是为派对而生的，不是吗，每天晚上你都去参加派对。
Why aren't all lenses supplied with a lens hood?
为什么不给所有的镜头都配上遮光罩呢？
He says the opposition will radicalize its demands if these conditions aren't met.
他说如果这些条件不能得到满足，反对派的要求会变得更激进。
These two gloves don't match [ aren't a pair].
这两只手套不配对儿。
Don't get in a draught, you aren't well yet.
你病还没好，不要吹风。
Because Mother is afraid we'll get lost, we aren't allowed to wander far
妈妈生怕我们迷路，不准我们走远。
There aren't many people in his family.
他家人口不多。
It's a good thing you aren't married
幸好你没有结婚。
You're tired, aren't you?
你是累了不是？
Electrons weigh very little, so they aren't even counted in the atomic weight.
电子非常轻，因此在原子量中甚至没有计算它。