學測原句

• 113 學測｜混合題｜第 2 段
  However, if a predator (such as a fox) is present, the pattern of their flight will change immediately.
  然而，一旦有掠食者（例如狐狸）出現，牠們的飛行模式就會立刻改變。
  • present：這裡是形容詞，「在場的」，a predator is present 是「掠食者出現」