尤其是图象元素寓意性手法运用之恰当可谓吕纪花鸟画之最特别之处。

Especially the appropriate use of simile skill in image element can be considered as his specialty of painting in flowers and birds.

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于是，他选择了隐喻的手法，将寓意现实之重的千层乌云与那看似渺小些微的象征性建筑符号融合在一个画面之中。

So, he chooses metaphor, he puts the serious reality in terms of heavy dark clouds and seemingly insignificant tiny symbolic building together in the screen.

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