极限: 1.(最高的限度) the limit; the maximum; the ultimate limit; limitation; extremity; tipping point 短语和例子人的寿命极限 the extreme limit of human life; 达到了极限 reach the limit; 限速每小时四十英里,不要超过这个极限。 the speed
农: 名词1.(农业) agriculture; farming 短语和例子务农 go in for agriculture; 学农 learn farming2.(农民) peasant; farmer 短语和例子菜农 vegetable grower; 果农 fruit farmer [grower]; 老农 old farmer; experienced [veteran]