isn't

英 [ˈɪznt]

美 [ˈɪznt]

is not 的常用口语形式

Collins.5

柯林斯词典

It's a love, isn't it?
真可爱啊，是不是？
It's a devil of a tricky problem, isn't it?
这是个非常棘手的问题，不是吗？
Isn't it fantastic? Just look at that!
这是不是棒极了？看看那个！
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。
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。
Mummy is so nasty to me when Daddy isn't here.
爸爸不在这儿时，妈妈对我很凶。
There! Isn't that your umbrella?
喏，这不就是你的那把雨伞？
What is it then? Something's up, isn't it?
那是怎么回事呢？出问题了，是吗？
But my world isn't your world, more's the pity.
可惜的是，我们是两个世界的人。
This isn't the first hare-brained scheme he's had.
这已经不是他制定的第一个愚蠢方案了。