Multiple sign-in多重帐号登入
Guest Sign-In来宾签到
Guests sign-in签到
google sign-in谷歌签署的
patrol sign-in巡逻签到处
Sign-in list签字单
sign-in sheet到达表;签到本
Sign-in form报名表
PHRASAL VERB（动词词组） If you sign in, you officially indicate that you have arrived at a hotel or club by signing a book or form. (在旅馆或俱乐部) 签到
I signed in and crunched across the gravel to my room.
我签到后便嘎吱嘎吱地穿过砾石路走到我的房间。