keep up with基本解释
跟上， 不落人之后；齐肩并进；紧跟

网络释义
1. 追上,赶上
2. 赶上
3. 跟上,不落后
4. 赶得上
5. 看齐

例句：
The older generation who cannot keep up with emails still prefer to use fax machines .
没能跟上使用电邮的步伐的老年人仍然喜欢使用传真机。

If you can keep up with the broadcast you 'll have a sense of isabelle olesen 's job .
如果你可以跟上广播，你就大概知道伊莎贝尔奥尔森的工作是什么样子的了。

If you would keep up with the windsors see how long you can make your trousers last .
如果你也向温莎宫看齐，那就看你能把一条裤子穿多久。

India 's recent interest-rate hikes have failed to keep up with inflation .
印度近期的利率上升并没能赶上通货膨胀的速度。

Rim popularized mobile email but failed to keep up with the move to touchscreen phones and mobile internet use .
rim曾令手机邮件大为普及，但却没能赶上触屏手机和移动互联网的潮流。