逐级
- adv.grade by grade
 - 网络qzaj; by degrees
 
逐级逐级
qzaj
a 一aa 丝aaag 丝绒aaak 丝织aaan 丝绸aaar... ... qz 逐 qzaj 逐级 qzbr 求之不得 ... 
                by degrees
逐级法,step-by-step... ... ) step-by-step method 逐级法 ) by degrees 逐级 ) super capacity 逐级澄清 ... 
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