Mary, be careful when you ride your bike.
玛丽,骑自行车的时候小心些。
But I am always careful, Todd. Why are you so worried?
可是我一直很小心呀,托德。你为什么这么担心?
Nowadays, drivers don't really pay attention to bicyclists and pedestrians.
现在的司机都不怎么注意骑车的人和行人。
Yes, you are right.
是的,你说得对。
And just yesterday, my friend was almost struck by a car while riding his bike.
而且就在昨天,我朋友在骑自行车的时候就差点儿被车撞了。
I see why you are worried now. Thanks for your warning.
我知道你现在为什么这么担心了。谢谢你的告诫。