her trainer was on hand to give advice.
她的培训师在现场指导。
they had many urgent and pressing matters on hand.
他们有很多紧迫的事情需要办理。
See main entry:hand
英汉双解词典包含131075条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。