It really is based on some impassioned pleas of parents whose children died after they turned two, which has led to the passage of all these laws -- not very much on data.
这真是本着某些激动的家长的苦苦恳求。 他们的孩子长过了两岁，之后在车祸中过世了。 他们的恳求使得政府通过了这些法律，并不是通过真的研究得出的结论。