HSK 7-9
减退
jiǎntuì动
to ebb; to go down; to decline
休息后疼痛逐渐减退。
Xiū xi hòu téng tòng zhú jiàn jiǎn tuì.
The pain gradually subsided after rest.
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Appears across levels (7-9) in the HSK 3.0 word list.