边际border

• 天际

  horizon

• 林际

  forest edge

里面interior

• 脑际

  in one's mind

• 胸际

  in one's heart

彼此间between

• 行星际

  interplanetary

• 校际篮球赛

  inter-school basketball match

• 厂际协作

  collaboration between factories

时候occasion

• 成败之际

  defining moment

• 正当战争胜利之际

  at the moment the war was won

• 值此建国五十周年之际

  on the 50th anniversary of the nation's founding

参见：际遇[jìyù]

适逢to be fortunate enough to experience something

• 际此盛会

  be fortunate enough to attend this distinguished gathering