keep up与with搭配吗？是必须得还是可以不

keep up与with搭配吗？是必须得还是可以不

这是两个词组：
1、keep up 的意思是：保持；继续；不低落；不落后
Keep up the struggle till you succeed.
继续战斗直到你们取得胜利。

2、keep up with 赶得上；和…保持联系
You try to keep up with the latest and make the smartest choices—but are they as healthy as you think?
尝试去保持最新的营养观念和做出最精明选择，但是你觉得它们带来的是你所认为的健康吗？

可以不。
keep up with:跟上,不落后于;保持与...同样的速度;和...保持联系
也可以kepp up单独用
比如：Prices have kept up all the year.全年物价一直居高不下。

可以不搭的，keep up 可以用，keep up with 也可以用。eg：keep it up ，keep up 什么speed ，是可以直接加宾语的。
keep up phr v
keep sth⇔up
to continue doing something
I don't think I can keep this up any longer.
keep up the good work!
(=continue to work hard and well)
if a situation keeps up,it continues without stopping or changing
= continue
How long can the economic boom keep up?
to go as quickly as someone else
keep up with
I had to walk fast to keep up with him.
to manage to do as much or as well as other people
≠ fall behind keep up with
Jack's having trouble keeping up with the rest of the class.
keep up with the Joneses
(=try to have the same new,impressive possessions that other people have)
to continue to read and learn about a particular subject,so that you always know about the most recent facts,products etc
keep up with
Employees need to keep up with the latest technical developments.
keep sth⇔up
to make something continue at its present level or amount,instead of letting it decrease
NATO kept up the pressure on the Serbs to get out of Kosovo.
if one process keeps up with another,it increases at the same speed and by the same amount
keep up with
Food production is not keeping up with population growth.
keep sth⇔up
to continue to practise a skill so that you do not lose it
I used to speak French,but I haven't kept it up.
keep sb up informal
to prevent someone from going to bed
I hope I'm not keeping you up.
keep your spirits/strength/morale etc up
to stay happy,strong,confident etc,by making an effort
We sang as we marched,to keep our spirits up.
keep up appearances
to pretend that everything in your life is normal and happy even though you are in trouble,especially financial trouble
keep up with [keep up with sb] phr v
to write to,telephone,or meet a friend regularly,so that you do not forget each other

可以不搭的，keep up 可以用，keep up with 也可以用。eg：keep it up ，keep up 什么speed ，是可以直接加宾语的。