For example, a composition mainly comprising a nonionic surface active agent and an alkyl lactate (see JP-A-4-68088), a composition mainly comprising a nonionic surface active agent and an adipic ester (see JP-A-4-59985), a composition mainly comprising a nonionic surface active agent and a polyalkylene glycol dialkyl ether (see JP-A-4-59984), a composition mainly comprising a nonionic surface act