isn't

英 [ˈɪznt]

美 [ˈɪznt]

is not 的常用口语形式

Collins.5

柯林斯词典

There! Isn't that your umbrella?
喏，这不就是你的那把雨伞？
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。
It's a devil of a tricky problem, isn't it?
这是个非常棘手的问题，不是吗？
Awfully hot, isn't it?
非常热，是不是？
Isn't it about time that you pulled your finger out?
现在到了你该赶紧动起来的时候了吧？
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。
I suspect he isn't altogether unhappy about my absence
我猜想他对我的缺席并没有感到很不高兴。
Isn't it fantastic? Just look at that!
这是不是棒极了？看看那个！
Isn't he just the most beautiful thing you ever saw?
他难道不是你见过的最美的事物么？
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。