1)怪不得 no wonder
例:怪不得昨天他没去长城,原来他病了。
No wonder he didn't go to the Great Wall yesterday; he was sick
after all.
例:粥里放了糖,怪不得这么甜呢。
They put sugar in the porridge; no wonder it's so sweet.
2)倒 indicate something unexpected
例:我倒是很想跟你一起去,就是没有时间。
I would really like to go with you. It's just that I don't have
the time.
例:这双鞋价钱倒是不贵,就是颜色不太好。
This pair of shoes really isn't expensive. It's just that the
colour is not very nice.