This paper introduces the application of the means of perturbation in hard spring system.
本文介绍了微扰法在硬弹簧系统中的应用。
The Mole had been working very hard all the morning, spring-cleaning his little home.
鼹鼠辛辛苦苦地干了一上午活，给他的小屋子来了个春季大扫除。
These trends will continue in spring. Hard work will be fruitful.
这些趋势会持续整个春天，努力的工作会有丰硕的回报。
It's Spring Festival, so flights are hard to book.
现在是春节，机票很难订。
Every spring I sell my hard-top and buy a convertible .
每年春天我把有金属顶盖的汽车卖掉，再买一部顶篷可折起的车。
Growing seedlings in early spring was another hard job.
初春育苗成了一大苦事。
Who made the rock into a water-spring, and the hard stone into a fountain.
他叫磐石变为水池，叫坚石变为泉源。
Who made the rock into a water-spring, and the hard stone into a fountain.
他叫磐石变为水池，叫坚石变为泉源。
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