爽然若失shuǎng rán ruò shībe at a loss;experience a feeling of emptiness;it dawns upon sb that he has been wrong; not know what to do(/think)/……又听焕之这样说，对于他自己专办学校不问其他的信念，不禁～了。(叶圣陶《倪焕之》276) …now that he heard Huanzhi speaking in this manner,he could not help being suddenly overwhelmed by the realization of his mistake in becoming engrossed with the running of the school to the exclusion of other convictions. 爽然若失shuǎnɡ rán ruò shī爽然：犹豫不决、拿不定主意的样子；失：失去。形容主意不定，无所依托。be at a loss, not know what to think, not know what to do |