he was by turns amused and mildly annoyed by her.
他一会儿被她逗笑, 一会儿又被她惹得有点烦。
See main entry:turn
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。