英式：[kˈlʌmpɪŋ]美式：[kˈlʌmpɪŋ]
n.(马蹄等的) 啪哒啪哒声
n.集合
动词clump的现在分词形式.
Do you hear the clump of boots? 你听到靴子的咯咯声吗？
He was clumping about in heavy boots that time. 那时他正穿着笨重的靴子走来走去。
