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
相对: 1.(面对面) opposite; face to face 短语和例子相对而坐 sit opposite [facing] each other; sit face to face2.(非绝对的) relative 短语和例子相对真理 relative truth3.(比较的) relatively; comparatively 短语和例子相对地说 comparative
