keep sb.up to date on sth 语法

keep sb.up to date on sth 语法 keep sb to do sth keep distance from sb./sth.at sb's request up to now~request sb.is up to sth. 有没有keep sb on doing sth keep you up to date on your work.怎么翻译,怎么断句 you can keep up to date with what is going on in the world的汉 It keeps you up to date on/with sth.哪个对? 语法：有没有keep sb do/to do sth?如果有, congratulation to sb.on sth. pass sth on to sb put sb on sth (to