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;
脉: 脉名词1.(动脉和静脉的统称) arteries and veins2.(脉搏的简称) pulse 短语和例子切脉 feel the pulse3.(像血管的组织; 连贯成系统的东西) vein 短语和例子细叶脉 veinlet in a leaf; 山脉 mountain range [chain]; 矿脉 a vein of ore; mineral vein