I became a presenter by default rather than by design.
我成为主持人是因为当时我未考虑其他选择就接受了, 并非我刻意要求得此职。
See main entry:design
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。