1. outweighed….. 超過
There are more advantages than disadvantages.
His savings are outweighed by his monthly expenditure.
2. brain drain 人才流失
Young talents in Hong Kong move to other countries for better working opportunities.
Britain has suffered a huge brain drain in recent years.
寫作時經常會用到 problem 呢個字，唔想下下寫problem problem problem?
而家就教大家四種 problem 嘅唔同用法啦
Abortion is a very controversial issue.
setback嘅意思係挫折、障礙，經常搭配一啲解作「遭遇」嘅詞 (experience / receive / suffer)
He had experienced multiple investment setbacks.
Money seems to be an obstacle.
She thinks this is the biggest challenge of her life.