to write your name on a form when entering or leaving a place:
to sign your name in a book when you arrive at an office, hotel, etc. to show that you have arrived and are in the building:
英语词典包含110679条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。