It was on a spring afternoon.

那是一个春天的下午。

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A spring popped out of the watch.

表里突然弹出一节弹簧来。

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She walked along with a spring in her step.

她迈着轻快的步伐向前走去。

《牛津词典》

Most American colleges and universities take a spring break.

VOA: special.2009.04.02

If you connect the body to a spring, which is neither compressed nor extended, there's no force acting on it.

如果将一个弹簧连在这个物体上,弹簧既没有被压缩也没有被拉伸,也不会有力作用在它上面

耶鲁公开课 - 基础物理课程节选

You cannot have a spring pulled only at one side, because then it will then accelerate with infinite acceleration in that direction.

你不可能对弹簧只施加一边的拉力,因为那样的话弹簧就会以无穷大的加速度加速,就在这个方向上

耶鲁公开课 - 基础物理课程节选

Market watchers and jittery investors may have a new wrinkle to worry about: A Spring Slide.

FORBES: Is The Market On A Spring Slide? These 10 Indicators May Have The Answer

Luggage can be secured firmly with a spring-loaded four-point harness, as used in helicopters.

ENGADGET: Mercedes-Benz GLA concept puts laser projectors in headlights, redefines SUV

NDCWales is also in the middle of a spring tour celebrating its 30th birthday.

BBC: National Dance Company Wales suspend Roy Campbell-Moore