我刚刚到车站，火车就开走了。

I had ___just arrived at the station when the train left.

这正是我需要的时机。

This is ___just the time I need.

他刚好赶上了末班车。

He ___just made it to the last bus.

我只是想帮你，没有别的意思。

I ___just want to help you, nothing more.

我只是想确认一下明天的会议时间。

I ___just want to confirm the meeting time for tomorrow.