潜移默化

imperceptible influence / to influence secretly

variant of 花[hua1]

to make into / to change into / -ization / to ... -ize / to transform / abbr. for 化學|化学[hua4 xue2]

to move / to shift / to change / to alter / to remove

silent / to write from memory

hidden / secret / latent / to hide / to conceal / to submerge / to dive

intangible changes / unnoticed transformation / changes behind the scenes