517.The day is long to him who knows not how to use it.百无聊赖

518.The words fail to convey the idea.词不达意

519.They seem to have met before.似曾相识

520.This is not to be mentioned to outsiders.不足为外人道。

521.To make you must break.不破不立

522.Treat other people as you would like to be treated; be considerate.推己及人

523.Try to make sb. do what he is unwilling or unable to.强人所难

524.Use a long rope to lie the sun-try to stop the passage of time.长绳系日

The Gerund\/Participle（动词-ing形式）

525.Be careful not to get choked while eating-be very cautious.吃饭防噎

526.Go away without taking leave.不辞而别

527.It's like a strong wind sweeping away dead leaves.疾风扫落叶。

528.Keep the general goal in sight while taking hold of the daily tasks.大处着眼，小处着手。

529.Let's not leave without seeing each other.不见不散

530.Live off one person while secretly helping another.吃里爬外

531.Look at the flowers while riding a horse.-gain a shallow understanding from a fleeting glance.走马看花 本章未完，请点击下一页继续阅读！ 第3页/共5页