这个面料类似于羊毛，只是更便宜。

This fabric is similar to wool, ___only cheaper.

我本可以早点离开，只是你不想。

I would have left earlier, ___only you didn’t want to.

当我需要他时，他总是在那里，只是我需要他的越来越少。

He was always there for me when I needed him, ___only I needed him less and less.