keep up with
remain on the level with；maintain the same speed with保持同一水平；赶上
My secretary works so fast that no one in the office can keep up with her．我的秘书工作非常快，办公室里没有人能赶上她。
Every home and office needs the latest electronic equipment to keep up with the times．每个家庭和办公室都需要最新的电子设备以赶上时代的步伐。
I have to work hard to keep up with the other students．我必须努力学习，赶上其他同学。