然后，你必须在这个委托对象上调用BeginInvoke方法。

Then, you have to call BeginInvoke on this delegate object.

youdao

如果是Linux，你必须熟悉unix系统调用。

If it is Linux, you must know UNIX system calls.

youdao

从类中调用setter方法时要小心，Ruby可能会认为你想创建一个局部变量，所以你必须以self作为接收者来显式地调用它

Be cautious when calling setter-methods from within their own class, Ruby might think you want to create a local variable, so you have to call it explicitely with self as the receiver

youdao

But as soon as the most recently called function finishes executing, you have to take that tray off the stack in order to get at the previous function's memory, and once he's done executing, you have to take that one off and then what's left well then main.

但是，一旦新的调用函数结束了执行,你必须从堆中把托盘拿掉,用来获得先前函数的内存，一旦他完成执行，你必须把那一块拿下来,然后剩下的是main函数。

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