So in a moment you're going to go ahead and hit the spacebar and then as things fall from the screen when they line up with the left arrow, hit the left arrow with a different arrow, hit that arrow and see how good a score you can get.

一会儿你走到前面，敲一下空格键,当屏幕上面的东西从左边往下掉的时候,你就敲一下键盘上的左键,是哪个方向，敲对应的方向键就可以了,我们来看看你能得多少分。

哈佛公开课 - 计算机科学课程节选

The drop in the MACD-His below the zero line last week (see arrow) is also a sign of weakness.

FORBES: Will Hedge Funds Be Wrong Again?

Then they persuaded Arrow International, one of the largest manufacturers of central lines, to produce a new central-line kit that had both the drape and chlorhexidine in it.

NEWYORKER: The Checklist