enough後面可以加名詞單數也可以加名詞複數。
enough (用於複數或不可數名詞前) 足夠的,充足的,充分的。
There isn't nearly enough time to get there now.
現在根本沒有足夠的時間趕到那兒。
They had enough fuel to see the winter out.
他們有足夠的燃料過冬。
Come and get me if you think you're hard enough.
你要是覺得自己有種,就衝着我來吧。