But sumatriptan has side effects and overuse of medication can be hard on the body.

VOA: standard.2009.12.17

It's a little easier to hit the ball hard to the opposite side from the side which is your foot and that's the same principle in baseball.

从另一侧击球更容易发力,在棒球中这个道理也是适用的

耶鲁公开课 - 博弈论课程节选

but I'm kind of pushing things to the side. It's kind of hard to turn it off.

但我却会强迫性地去观察。而且很难停止。

旧金山的调酒师 - SpeakingMax英语口语达人