first passage

• 首次通过

first passage的用法和样例：

例句

1. The boundary which had first passed was readopt by a large vote.
   第一次通过的边界线已过大多数投票通过再予采用。
2. Here is a bit of a road map to guide you through these pages the first time.
   这里是一些线路图，以引导你首次通过这些页面。