afraid
adj. 害怕的；担心的；（害怕后果而）不愿意的，勉强的；遗憾的
例句
I'm afraid you guessed wrong.
恐怕你猜错了。
《牛津词典》
I'm afraid I never wrote back.
我恐怕从未写过回信。
There's nothing to be afraid of.
没有什么要害怕的。
