在这里我是骑摩托车四处奔波，傻傻地不带安全帽，而速度也从来开不快。

I use a motorbike here to get around. No helmet, stupidly, but the speeds are never great.

youdao

如果你是一个摩托车司机，开车时要带安全帽保证自己的安全。

If you are a motorbike driver, you should wear a helmet to protect yourself.

youdao

因此，摩托车骑士戴安全帽是非常必要的。

Therefore, it is extremely important for the motorcyclist to wear the helmet.

youdao

Neuropsychologists love when motorcyclists drive without helmets because through their horrible accidents we gain great insights into how the brain works.

他们喜欢不带安全帽就能开摩托车的时代,因为通过他们严重的交通事故,我们能够了解大脑是如何进行活动的

耶鲁公开课 - 心理学导论课程节选