金科玉律, 指导原则
【法】 金科玉律
在线英汉词典
golden rule的短语、例句：
golden rule very important principle which should be followed when performing a particular task 重要的原则; 金科玉律
The golden rule in playing tennis is to watch the ball closely. 打网球最重要的一点就是紧盯著球.

标签：golden rule,用法,音标,短语