The throne had six steps, and its back had a rounded top. On both sides of the seat were armrests, with a lion standing beside each of them.

宝座有六层台阶，座的后背是圆的，两旁有扶手，靠近扶手有两个狮子站立。

youdao

The cat arched its back and hissed.

猫弓起背发出嘶嘶声。

《牛津词典》

If it's going to navigate, it needs those sounds to be broadcast and bounced back from objects in its path.

如果它要导航，它需要播放这些声音，并让声音被路径上的物体反弹回来。

youdao

"In short,our goal is to get G.M.back on its feet, take a hands-off approach and get out quickly."

VOA: special.2009.06.05

Now, if that potential changed and it stayed changed forever, then the cell would never go back to its resting state.

如果电势变化并且不再恢复到原始电势,细胞就永远不会回到静息状态

耶鲁公开课 - 生物医学工程探索课程节选

In there, I want to make this distinction, this nuance: the evaluator is still going to be taking those expressions and using its rules to get a value, but it's not going to print them back out.

在这里，我想要做这么一个，细微差别：运算器依然会,对表达式,进行求值，但是不会,显示结果值。

麻省理工公开课 - 计算机科学及编程导论课程节选

Experts say that it is possible for this system and its back-up computers to be disabled by lightning.

CNN: Could lightning have brought down Air France plane?

And yet it is a miracle that Voyager 2 managed to send anything back at all, for its main radio system failed soon after launch, and its back-up system proved to be faulty.

ECONOMIST: The long arm of the celestial repairman

Each rat had, in effect, grown a new nervous system which ran from the motor cortexes of its brain, down its spinal column, past the breaks in its spine and into its back legs.

ECONOMIST: An experiment on rats brings hope to the paralysed