know something from somethingUNDERSTANDto understand the difference between one thing and another 分辨事物,知道事物间的差异 Lloyd doesn’t even know his right from his left. 劳埃德甚至分不清左右。
At what age do children start to know right from wrong? 儿童到什么年龄开始懂得分辨是非?
know something from something• I wouldn't know a French wine from a California wine.
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