a.

1. 幸運的，僥倖的[+to-v][（+in）][+that]
   It is fortunate that we can all meet tomorrow.

   我們明天都能見面了，真是幸運。

   He's fortunate in having a good job.

   他真幸運，有份好工作。

   I feel fortunate to have met them.

   我覺得很幸運能見到他們。

2. 帶來幸運的
   He came at a very fortunate time.

   他來得恰是時候。

   That is a fortunate start.

   那是個良好的開端。

adj.