1、keep up
（与…）齐步前进；不落后（于…）
She shook her head and started to walk on. He kept up with her.
她摇了摇头开始往前走。他跟了上去。
跟上（变化等）
wage increases which keep up with inflation.
与通货膨胀同步的工资增长
Things are changing so fast, it's hard to keep up.
事情变化得太快了，很难跟上形势。
跟上（活儿、人等）；同…做（或理解）得一样好
Penny tended to work through her lunch hour in an effort to keep up with her work.
为了把活儿干完，彭妮常常午饭时间也要工作。
Life is tough for kids who aren't keeping up in school.
孩子们如果在学校里功课不好，日子就会不好过。
继续做（或提供）
I was so hungry all the time that I could not keep the diet up for longer than a month.
我无时无刻都觉得饿，节食坚持不到一个月就放弃了。
They risk losing their homes because they can no longer keep up the repayments.
因为无力继续偿还借款，他们面临无家可归的危险。
2、hook up
连接，接通（计算机或其他电子仪器）
technicians who hook up computer systems and networks.
连接计算机系统和网络的技术人员
He brought it down, hooked it up, and we got the generator going.
他把它拿下来，连接好，我们的发电机就开始运转了。
（尤指音乐家）（和…）搭档，（和…）联手
Anthrax have hooked up with Public Enemy for a metal/rap version of 'Bring On The Noise'...
炭疽乐队和公敌乐队联手合作了重金属加说唱版的歌曲《带来噪音》。
Seeing as how we got on so well together, it just seemed natural that we should hook up.
既然处得这么好，似乎我们理所当然应该搭档。