isn't

英 [ˈɪznt]

美 [ˈɪznt]

is not 的常用口语形式

Collins.5

柯林斯词典

That isn't a value judgement, it's a fact.
那不是一个价值判断，而是一个事实。
Mummy is so nasty to me when Daddy isn't here.
爸爸不在这儿时，妈妈对我很凶。
Isn't it fantastic? Just look at that!
这是不是棒极了？看看那个！
My bank balance isn't very large.
我的银行存款余额不多了。
It's past the appointed time. Maybe he isn't coming.
约定的时间都过了，别是他不来了吧？
Awfully hot, isn't it?
非常热，是不是？
She's quite pretty, isn't she?
她长得挺美，不是吗？
It's a love, isn't it?
真可爱啊，是不是？
This isn't highfalutin art-about-art. It's marvellous and adventurous stuff.
这不是一件纯粹为艺术而艺术的华而不实的东西，而是进行了大胆创新的非凡作品。
What is it then? Something's up, isn't it?
那是怎么回事呢？出问题了，是吗？