keep up with是个什么意思？

牛津高阶字典：keep up (with sb/sth), to move, make progress or increase at the same rate as sth/sb.(与……)齐步前进，并驾齐驱；跟上。keep up with sb ，to continue to be in contact with sb 与某人保持联系keep up with stn，1. to learn about or be aware of the news, current events,etc.熟悉，了解（消息，形势等）。2. to continue to pay or do sth regularly.继续支付，继续做。