give someone a hand
also lend (someone) a handto give someone help:
Could you give me a hand with these suitcases?
Marcia has taught her children to lend a hand when it comes to cleaning up after meals.
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。