be in your element idiom
适得其所；得心应手
to be happy because you are doing what you like or can do best
Kate, of course, was in her element, making all the arrangements. 凯特安排这一切当然是得心应手。
英汉双解词典收录81607条英汉双解翻译词条，基本涵盖了全部常用单词的读音、翻译及用法，是英语学习的有利工具。