“离弦之箭”用英语如何翻译

离弦之箭 Arrow leaving bowstring

虽然他看起来身形有些胖, 但跑起来犹如离弦之箭。
Though he is a little fat, he runs as fast as an arrow

arrow that is leaving the bowstring

the arrow released

就是very fast就可以啊，要表达的是意思嘛