connect up

1. 连接; 接通

You must connect up the cells before you can get any current.

你应该先把电池连接起来, 才会有电流。

connect with

1. 连接

The bridge connected the island with the mainland.

这座桥把这个岛屿与大陆连接起来。

2. 与……联系

Please connect with him soon.

请立即与他联系。