The ulterior motive

When we look around us at the natural world, there is often an ulterior motive.

当我们在大自然世界中环顾四周时，心里往往怀有一个动机。

Refusing on the basis that they must have some evil ulterior motive might be safer, but you might miss out on a great new friend.

或许拒绝会来得更为安全——出于认为他们一定是别有用心的理由，但你也有可能为此错过一个非常了不起的新伙伴。

The suggestion of some ulterior motive for the affair, particularly ambition, was risible in a way that the widow could not have imagined.

玛丽娜.克里洛夫娜提到的隐秘的动机，在某种程度上说是荒谬的，她认为这是玛丽娜想都无法想到的，尤其是远大志向。