减退

tā yóu yú huàn bìng jì yì lì jiǎn tuì

他由于患病记忆力减退。

His memory is blurred by his illness.

hái zi de shì lì zài jiǎn tuì

孩子的视力在减退。

The child's eyesight is failing.

tā duì zhè ge xué kē de xìng qù zhú jiàn jiǎn tuì

他对这个学科的兴趣逐渐减退。

His interest in this subject gradually decreases.

wú yí dà jiā duì mín yáo de xìng qù jiǎn tuì le

无疑，大家对民谣的兴趣减退了。

Undoubtedly, public interest in folk music has declined.