Examples

他因画虎类犬在学校成了众人的笑料。

He became the public jape in school, because he overreached when imitating others.

The injured dogs' behaviour cannot be differentiated from that of their uninjured pack mates.

受伤犬的行为与其它未受伤的犬没有什么区别。

The dog nosed out the drugs.

这只犬嗅出了毒品。

For a dog，an erect tail indicates aggression.

对犬而言，尾巴直立表示要发动攻击。