as ocasion serves

• 一有机会

as ocasion serves的用法和样例：

例句

1. This is why I intend to get down there just as soon as I can.
   这就是我打算一有机会就到你那里去的理由。
2. In the 19th century, Washington was mostly viewed as a humid, uninviting town that presidents escaped from when they could.
   在十九世纪，华盛顿被大多数人看作一个潮湿和令人讨厌的小城，总统们一有机会就会逃出城外。