stepped
/stept/adjective
1- having or formed into a step or series of steps有阶梯的; 成阶梯的：
a building with stepped access.
有阶梯式入口的建筑物。
1.1
- carried out or occurring in stages or with pauses rather than continuously成阶段的; 非连续的, 有停顿的：
a stepped scale of discounts.
不同等级的折扣。