wątpić w 用英语:

There's no doubt.

I sometimes wish I could live a quiet retired sort of life but I doubt I could stand it for more than a few days.

Though grammatically there is nothing wrong with this sentence, I doubt if anyone would actually ever use it.

For example, China's public transport is without a doubt better than the UK's, but the UK's public welfare may be better than China's.

It is more difficult to defend oneself than to defend someone else. Those who doubt it may look at lawyers.

Man, I just saw it on the news! Damn, you're making me doubt my own eyes!

Without doubt, what people worship first is what they see most often; for example, the animals that had the closest connection to people's lives, like the horse, the cow, the sheep, the rooster, the dog and so on.

I doubt if a single individual could be found from the whole of mankind free from some form of insanity. The only difference is one of degree.

The fundamental cause of the trouble is that in the modern world the stupid are cocksure while the intelligent are full of doubt.

Where a painting's general sense seems clear, moreover, the exact decoding of its content remains in doubt.

It is not as a child that I believe and confess Jesus Christ. My hosanna is born of a furnace of doubt.

He has a great storehouse of knowledge about historical details but I seriously doubt that's of any use in life.