英语词汇pin sth↔down怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	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。 See also pin
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英汉双解词典包含314281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。