stumper的读音 stumper中文意思

英音  ['stʌmpə] 
美音  ['stʌmpə] 
n. 作竞选演说者,难题
stumper 用法和例句
Cartoonist marc bell took on the stumper , what drives plate tectonics ?
漫画家马克贝尔接过这一难题,什么促使了板块构造?
Your boldest question was a real stumper .
你冒失提出的问题是一个真正的难题.