beef
[bif]
n.
牛肉;
菜牛（饲养以供肉食的牛）;
体力;
怨言，牢骚;
vi.
抱怨，大发牢骚;
例句:
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The burger's beef was grass-fed by Lasater Ranch.
来自WSJ
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They used to buy ten kilos of beef in one lump.
他们过去常买10公斤重的整块牛肉。
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Beef now costs well over 30 roubles a pound.
牛肉现在卖到了每磅30多卢布。
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A tantalising aroma of roast beef fills the air.
空气中充满诱人的烤牛肉香味。
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Place the mixture into the pan with the beef.
来自BBC
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Rub the beef all over with the mustard paste.
来自BBC
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There's cold beef going.
有冻牛肉出售。
来自《权威词典》
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She bought two jin of beef in supermarket.
她在超级市场买了两斤牛肉。
来自《权威词典》
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Come on, put some beef into the job!
来,加把劲干活吧!
来自《权威词典》