on one occasion

例句：

1. 1. On one occasion, I decided togo for a bike ride.
   有一次，我决定去骑自行车。
2. 2. He said he would cometo the party on one occasion.
   他说他会来参加聚会的。
3. 3. We'll meetagain on one occasion.
   我们还会再见面的。