This appendix has been written to explain the usage of Spring autowire mechanism, described in Back to Spring section.

“回到Spring”部分描述了Spring的自动装配机制，该附录对自动装配机制的用法做进一步的阐述。

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The children groped their way back to the spring.

孩子们摸索着回到泉水边。

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They came back to the garden, and with them came the spring.

他们回到花园里，春天也随他们一同到来。

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She fell back to Earth, but the steel-spring bustle just bounced her back up as high as before.

VOA: special.2009.11.28

We go back to the spring and we want to learn something about the spring.

我们回到弹簧的问题上来,我们要学习一些关于弹簧的知识

耶鲁公开课 - 基础物理课程节选

I tie a spring to my back and I anchor it to the wall and see how much the spring stretches before the two forces balance.

我把弹簧一端系在背后,另一端固定在墙上,观察两个力平衡时弹簧的伸长量

耶鲁公开课 - 基础物理课程节选

You would have to go back to the spring of 2011 to find the last time FCX was trading oversold above the 200-day average.

FORBES: Copper Strength Sets Up Bullish Trades In Freeport McMoRan, Southern Copper

To find out, we had to go back to where this story begins, back to the spring of 1967, when fierce debate was under way in the Senate over funding for anti-poverty programs.

NPR: 'Still Hungry in America': A Return to Mississippi

Looking back to the spring, we see an FCX that could withstand multiple, consecutive selling days before reversing to rally back into strength.

FORBES: Copper Strength Sets Up Bullish Trades In Freeport McMoRan, Southern Copper