Only when you learn how important it is can you put your heart into it.
惟有当你领会它 的要害性， 你才会浑身心加入去进修它培修用英语如何说。
The mountain route that is practicable only in summer
React with violence only under provocation,ie when provoked
Only man has reason
Only you that I can trust.你是我独一信任的人.
Only Helen that can help you to solve the problem.