| 单词 | to pin down |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔down〕Every attempt to pin down the cause of the disease has proved unsuccessful.确定病因的所有努力都失败了。韦氏高阶〔pin down〕It has taken until now to pin down its exact location.直到现在才确定了它的准确位置。柯林斯高阶〔pin down〕It has taken until now to pin down its exact location.直到现在才搞清楚它的准确位置。外研社新世纪〔pin sb down〕I've tried asking Stephanie, but she's proving difficult to pin down to a particular date.我已经问过斯蒂芬妮了，可她很难确定具体日期。剑桥高阶〔pin〕He's impossible to pin down.让他明确表态是不可能的。朗文当代〔pin〕Officials are trying to pin down the cause of widespread power cuts.官员们正在设法确定大面积停电的原因。麦克米伦高阶〔pin〕The cause of the disease is difficult to pin down precisely.病因目前还难以解释清楚。牛津高阶〔pin〕The difference between the two approaches is hard to pin down precisely.这两种方法之间的区别很难准确地说清楚。牛津搭配〔pin〕The flavour was hard to pin down.那味道很难确切描述。朗文当代He's really difficult to pin down -- you'll have to be persistent.让他交待很难----你必须坚持。剑桥国际 |
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