These are things that are mandated by law.

这些都是法律规定的。

They are allowed to by law.

法律允许他们这样做。

It also means required by law.

它也表示法律规定的。

Other than I'm required to by law?

这是法律规定我必须做的？

They were accused of breaking the law by tailgating.

因为它们会追尾。

We've had 'file' — make something official by law.

我们已经学了提起（诉讼）——依法使某件正式化。

By law, children cannot be sent back alone.

法律，儿童不能单独被遣返。

Registration with the Selective Service is required by law.

到兵役登记局登记是法律规定的。

In 1983, head coverings in public became required by law.

1983年，法律要求女性在公共场合戴头巾。

In many European countries, wolves are now protected by law.

在欧洲许多国家，保护狼群已经被写进了法律。

By law, any piece of a space shuttle is NASA property.

法律，航天飞机的任何部件都是NASA的财产。

Prior to the Civil War, some states allowed slavery by law.

在内战前，一些州在法律上允许奴隶制的存在。

They would also have to offer table service only by law.

他们也只能法律提供餐桌服务。

He noted that Biden's order is not backed by law.

他指出，拜登的命令没有法律支持。

He was required by law to wear it at all times.

依法他必须随时佩戴。

I believe that we were given the laws of reality by nature.

我相信我们天生就拥有现实法则。

The registration and protection of trademarks are now provided for by law.

商标的注册和保护现在已有了法律规定。

Executive Orders are signed into law by the president bypassing congressional approval.

行政命令由总统签署成为法律，绕过国会批准。

I'm obliged by law to take away your driver's license.

我要依法拿走你的驾驶证。

But by law, USPS has to deliver to every home in the country.

但法律规定，美国邮政局必须向全国每家每户提供服务。