渐渐jiàn jiàn
[gradually;increasingly;slowly;
by degrees;by little and little;
step by step] 程度或数量逐步地;慢慢地
渐次jiàn cì
[gradually;increasingly;slowly;
by degrees;by little and little;
step by step] 渐渐地;逐渐
逐步zhú bù
[step by step;progressively;by degrees] 一步步