drop heavily
同义词：plonk down??/??plank down
set (something or oneself) down with or as if with a noise
同义词：plank??/??flump??/??plonk??/??plop??/??plunk??/??plunk down??/??plump
英汉双解词典包含3185865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。