你应该使用重点的分量，在一个训练的每个部分，做的慢点(5秒起，5秒下)，一直到筋疲力尽，在锻炼的每个部分都保持好的姿势。

You should use heavier weights, one set for each exercise, doing them slowly (5 second up, 5 seconds down), and to exhaustion, making sure to have good form on each exercise.

youdao

720p 是安装时能够使用的最低视频大小；如果没有分量或 DVI 输出，请使用文本模式。

720p is the minimum usable installation video size; if you don't have component or DVI output working, use text.

youdao

如果没有分量视频，那么可以使用支持s - video的设备。

If you can't do component, you might have a device that supports S-video.

youdao

And I can find the orientation of the arrow You have the option of either working with the two components of A or with the arrow.

我也可以求得矢量的方向,你可以选择使用,A 的两个分量或者矢量图来计算

耶鲁公开课 - 基础物理课程节选