孤军深入 gūjūnshēnrù to penetrate deep into enemy territory alone Origin Definitions Defs Strokes Stroke Words Sentences Sents 孤军 孤軍 gūjūn isolated force an army or military force that is isolated and without reinforcements深入 shēnrù verb to penetrate deeply To go deep into the interior or core of something; to penetrate into a place or group.