keep up是什么意思中文翻譯

　　If you do not keep up with the payments you could lose your home.

　　如果你不繼續付款，你的住房就可能保不住了。

　　Do you still keep up your Spanish?

　　你還堅持說西班牙語嗎？

　　Slow down—I can't keep up!

　　慢點—我跟不上了！

　　I can't keep up with all the changes.

　　我并非所有的變化都能跟得上。

　　It pays to keep up to date with your work.

　　工作能跟上時代是有利的。