about on的用法和样例：
例句
- The racecourse borders the city on the east.
赛马场邻接东城。 - Then place the creature on the rooftop in a legal position next to the ladder square.
然后，将该生物放到邻接楼梯方格的合法屋顶位置。 - As the afternoon drew on, we got impatient.
随着下午的临近，我们变得不耐烦起来。 - On the last track Lil Wayne does get serious.
当歌曲临近尾声时，小韦恩的确变得严肃起来。
