阶: 名词1.(台阶) steps; stairs 短语和例子石阶 stone stairs; 台阶 a flight of steps2.(等级) rank 短语和例子军阶 military rank3.[医学] (耳蜗的三个螺旋管的任一个) scala 短语和例子中阶 scala media4.[数学] order 短语和例子非整数阶 non-integral order;
范围: scope; limits; extent; boundary; confines; range; range dimension; spectrum 短语和例子活动范围 scope of activities; 势力范围 sphere of influence; 范围狭小 limited in scope; 国家管辖范围 the limits of national ju
