problem

問題、難題、麻煩

We ran into a serious problem during the final stage of testing.

我們在測試的最後階段遇到了嚴重的問題。

題目、習題

She solved all twenty math problems in under an hour.

她不到一個小時就解完了二十道數學題。

毛病、病症

He has had a knee problem since his college days.

他從大學時期就有膝蓋的毛病。

反對、意見口語，多用於否定或疑問

Do you have a problem with me leaving early today?

我今天提早走，你有意見嗎？

有問題的、難處理的置於名詞前

The school has special classes for problem students.

學校為問題學生開設了特別的班級。