潜进qiánjìnMeanings1. to sneak in2. to infiltrateCharacters used潜hidden进to advanceExamples1他tā潜进qiánjìn水shuǐ里lǐ，然后ránhòu又yòu浮上fúshàng水shuǐ来lái换气huànqì。He dived into the water and came up for air.