Obligative
专性的
🗣️ 情景例句
Let's see ... hotcakes and maple syrup, with scrambled eggs.
让我瞧瞧……烤饼， 枫糖， 还有炒蛋。
Though the fox run,the chicken hath wings.
狐狸虽会跑，小鸡有翅膀。
He 'll come if he can.
如果可能，他会来的。