Pop again and draw a blue rectangle (which no longer includes the rotation transformation).

再取出一次，并绘制一个蓝色矩形(它不再包含旋转转换)。

youdao

If you called pop again, then foo should be returned and the stack should be empty (assuming there wasn't anything in it before you added the two objects).

如果再次调用pop，那么应该返回foo，然后栈为空(假设在添加这两个对象之前栈中没有对象)。

youdao

youdao

Toni Robnett, who once saw a young Michael Jackson perform as part of the family pop group, the Jackson 5,was looking forward to see him perform again.

VOA: standard.2009.06.28

Some people expect him to pop up again in the automotive business, though he says he is content where he is.

ECONOMIST: Face value

But could it pop up again?

FORBES: The Justin Bieber Twitter Scam

Mom and pop, once again, have missed the moment.

FORBES: Investors Need to Summon Elephant's Memory before Charging Back to Stocks