HSK 7-9
淡化
dànhuà动
to water down; to play down; to trivialize; to weaken
时间逐渐淡化了他的悲伤。
Shí jiān zhú jiàn dàn huà le tā de bēi shāng.
Time gradually softened his sorrow.
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Appears across levels (7-9) in the HSK 3.0 word list.