return gear box 回行齿轮箱
Today he'd just drop the books off in the outside return box, but it was locked.
今天,他想只把书放在外面的归还盒里,但它是锁着的。
Those sailors who wanted a safe return would drop money into the box.
那些希望安全返回的水手会把钱投进箱子里。
I'll tell my secretary to put the paper in my mail box, and I'll get it when I return.
我会让我的秘书把这份文件放在我的信箱里,等我回来的时候就可以拿到。
So you're implementing this black box, and if its purpose in life is to actually return a value, you have to tell the compiler what kind of value to expect, and this is going to have ripple effects.
你在实现这个黑盒子,如果它的目的是,返回一个值,你必须告诉编译器你期望的是什么类型的值,这个将是一个连锁反应。
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