单词	hardpan
释义	hard·pan (härdpăn′) n. 1. A layer of hard subsoil or clay. Also called caliche. 2. Hard, unbroken ground. 3. A foundation; bedrock.
随便看	biogeochemistry biogeographer biogeographic biogeographical biogeography biographee biographer biographic biographical biographically biography biohazard biohazardous bioherm bioidentical bioinformatics bioinorganic bioinstrumentation Bioko bioleached bioleaching biolith biolithic biologic biologic

英语词典包含135693条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。