jiǎndào zhèngjiàn, shǒujī, qiánbāo shí, jiāogěi fúwù zhōngxīn huò ānbǎo rényuán zuì wěn捡到证件、手机、钱包时,交给服务中心或安保人员最稳。When you find an ID, phone, or wallet, the safest thing is to hand it in to the service center or security.