cogitating例句

Then he tossed the marble away pettishly, and stood cogitating.
于是他一气之下扔掉那个弹子, 站在那儿沉思.

He sat silently cogitating.
他静静地坐着沉思。

I was cogitating what the mystery might be.
我正在思索着这个秘密或许是什么.