quittern (often derog 常作贬义) person who does not finish a task he has started, esp one that is done as a duty 对工作半途而废的人; （尤指对职责）不善始善终的人 I've asked you to do this for me because I know you're not a quitter. 我要求你为我做这件事, 因为我知道你做事不虎头蛇尾.
牛津英汉双解词典