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
随便看	gainfulnesses gain, get, have, etc. the upper hand gain ground gain in gaining gaining ground gain in sth gain/make up ground (on sb/sth) gain on gain on sb gain on sb/sth gain on sth gain-over gains gainsaid gainsay gainsayer gainsayers gainsaying gainsays gains ground gain the upper hand gain time gain up ground gain up ground on

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