答案解析

查看更多优质解析解答一举报点头 nod one\'s head; nod点头同意 nod assent 点头打招呼 nod to sb.

(as a greeting) 点头示意 signal by nodding 他已经点头了 He\'s already given the go-ahead.

or He\'s already OK\'d it.

摇头 shake one\'s head 他摇了摇头表示反对.

He shook his head in disapproval.

他摇摇头,

因为他的想法与此不同.

He shook his head,

for he thought differently.

摇头表示否认.

Shaking the head is a sign of negation

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