Alexander signified his consent with a nod.

亚历山大意。

They agreed as to the grand outlines,but quibbled over particulars.

他们对重大要意,但对细节却含糊词。

Mark approval with a nod.

意。

She smiled acquiescence.

她笑了一笑意。

Although not universal, a vertical head nod for approval and a lateral headshake for negation is a common pattern across many cultures.

在许多文化中，人们上下意，左右摇否定，尽管不是所有文化都遵循这个模式。