挑三拣四， 仔细挑选; 挑五嫌六; 拣精挑肥; 挑三窝四

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1. You cannot pick and choose in this grocery store, but the price is usually lower than in a supermarket.
    在这家杂货店买东西不能挑挑拣拣，但价格通常比超级市场便宜些。

1. 选择：weight and measures重量与尺寸 | pick and choose选择 | pots and pans坛坛罐罐

2. 挑挑拣拣：pick a quarrel 寻衅 | pick and choose 挑挑拣拣 | pick and steal 扒窃

3. 仔细挑选,挑挑拣拣：pass to 传递,传达 | pick and choose 仔细挑选,挑挑拣拣 | pick off 摘下,逐个地射死