sign_in 英语 发音 （澳洲）音频动词 sign in（第三人称单数简单现在时 signs in，现在分词 signing in，一般过去时及过去分词 signed in） (俗语) 签到 In order to get into the office after hours, you'll have to sign in at the security desk.下班后进办公室需要到保安服务台登记。 (计算机) 登录近义词 log in log on sign on参见 sign up异序词 Sining, sing-in, singin'
