，引申开来是四面八方全都反对，陷入了非常孤立的境地，用

qw130140

《四面楚歌》

“四面楚歌”字面上是四面八方全是楚地的歌声，引申开来是四面八方全都反对，陷入了非常孤立的境地，用来形容极端孤立的境况。

16《司空见惯》



形容看得太多、便不足为奇。

类似的成语还有“屡见不鲜”。见多了也就不觉得新鲜了。

17《对症下药》

现在这成语的用法广泛得多。不光形容治病，凡是针对具体情况，具体问题，采取恰当措施和方法的，都可以用这成语来比喻。“对症下药”强调的是要根据客观情况采取有效方法；

相近的成语还有“有的放矢”。意思是要有目标地射箭。“有的放矢”强调的是办事要有目的性、针对性。

18《老马识途》

意思是老马认识道路。现在一般用它来比喻有经验的人熟悉情况，了解规律。有时候也写作“识途老马”，意思是一样的。
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