It keeps you up to date on/with sth.哪个对?

It keeps you up to date on/with sth.哪个对? keep sb.up to date on sth 语法 you can keep up to date with what is going on in the world的汉 求此句翻译: Do you think it is important to be up to date with cu it keeps you with a dog? 求翻译.up to date on We will be happy to give you up-to-date __ on bus and train we would like to bring you up to date on future contrace怎么翻译 I will try to brng you up to date on what we have give it up to sth. hold on to do sth hold on to doing sth ,哪个对 keep you up to date on your work.怎么翻译,怎么断句