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
滚: Ⅰ动词1.(翻转; 滚动) roll; turn round; trundle 短语和例子打滚儿 turn a somersault; 滚进 roll-in; 满地乱滚 roll all over the ground; 滚铁环 trundle a hoop; 他滚了一个雪球。 he rolled a snowball. 球滚到桌子下面去了。 the ball rolled
