isn't

英 [ˈɪznt]

美 [ˈɪznt]

is not 的常用口语形式

Collins.5

柯林斯词典

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。
Isn't dinner ready? I'm famished.
饭好了吗？我都饿坏了。
I'm afraid German beer isn't for me.
恐怕我喝不了德国啤酒。
It's a devil of a tricky problem, isn't it?
这是个非常棘手的问题，不是吗？
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。
My law practice isn't the most important thing in my life, you know.
你知道，我的律师事务所不是我生活里最重要的事情。
She's quite pretty, isn't she?
她长得挺美，不是吗？
Not all is perfect, but it isn't for want of trying.
一切并非无可挑剔，但已经竭尽全力了。
This is another half-baked scheme that isn't going to work
这又是一个不靠谱的计划，是不会成功的。
My bank balance isn't very large.
我的银行存款余额不多了。