glue to: 粘附到

We used glue to stick the broken pieces together.

我们用胶把碎片粘到一起。My daughter is glued to the TV screen.

我女儿死死地盯着电视屏幕。

glue on:

用粘性物质将…粘上

I put some glue on this paper， so they can stick together.

我给这张纸涂了胶水，因此它们可以粘在一起。