Make sure your vaccinations are up to date.

一定要接种最新的疫苗。

She brought him up to date with what had happened.

她让他知道最新的情况。

We are keeping up to date with the latest developments.

我们保持掌握最新的发展情况。

He's always meticulous in keeping the records up to date.

他总是十分细心地补充最新的资料。

All the data are up to date.

所有的数据都是最新的。