He had to give up teaching for the reason of health.

　　他由于健康原因不得不放棄教學工作。

　　For the reason of effectiveness of positive economic growth.

　　對經濟增長呈現正效益。

　　Analysis for the reason of the formation of black

　　鋼板表面黑線缺陷形成的原因分析

　　But this experiment is done in for the reason of limited conditions.

　　而實際上由于條件限制，很多中學是不做這個演示實驗的。