桩: Ⅰ名词(桩子) pile; pole; stake 短语和例子打桩 drive piles; set up row of stakes; 拴牛桩 a pole for tying up cattleⅡ量词(用于事情) 短语和例子一桩小事 a trifle; 一桩要案 an important case; 一桩生意 a business
效率: productiveness; efficiency; productivity; workpiece ratio 短语和例子效率低 inefficient; 效率高 efficient; 提高效率 promote efficiency; 效率首屈一指 second to none in efficiency; 投资效率 the efficiency of investme
