英语短语词组词汇pin sth↔down的音标、释义、翻译、用法及例句-英语短语词组词典

短语	pin sth↔down
释义	ˌpin sth↔ˈdownto explain or understand sth exactly确切说明（或理解）The cause of the disease is difficult to pin down precisely.病因目前还难以解释清楚。
随便看	polar explosives polar fox polar front polar fronts polar-front theory polar glacier polar glaciers polar grid polar group Polar high polari- polar ice polarimeter polarimeters polarimetric polarimetric analysis polarimetries polarimetry Polaris polarisabilities polarisability polarisable polariscope polariscopes polariscopic

英语短语词组词典共收录525608条英汉双解短语词组词条，基本涵盖了全部常用短语词组的翻译及用法，是英语学习的有利工具。