可以用pupil，learner代替。This is a problem that almost every learner will encounter.
這幾乎是每個學習者都會遇到的問題。
This English learner can communicate with foreigners confidently.
這位英語學習者能自信地與外國人交流。
As a learner， he drives very well.
作爲一個學員，他開車開得很好。
I know he's been a slower learner so far. But we need to have faith in him.
我知道他學東西比較慢。但是我們對他要有信心。
He was not so quick a learner as his brother.
他學東西不像他哥哥那麼快。
