'Certainly not,' he replied emphatically.

　　“當然不�！彼麛嗳换卮鸬馈�

　　Moby certainly has a fine ear for a tune.

　　莫比對音調(diào)的分辨能力一定很強。

　　He certainly was not politically inactive.

　　他在政治上當然不是無所作為。