isn't

英 [ˈɪznt]

美 [ˈɪznt]

is not 的常用口语形式

Collins.5

柯林斯词典

I'm sure you've got it wrong. Kate isn't like that
我敢保证你弄错了，凯特不是那个样子的。
Perhaps he isn't coming.
他许不来了。
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 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？
It's a devil of a tricky problem, isn't it?
这是个非常棘手的问题，不是吗？
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。
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？
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。
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。