wane

衰退、减弱、消退

His interest in the sport waned after the injury.

受伤之后，他对这项运动的兴趣就逐渐减退了。

亏缺、渐亏指月亮

The moon was waning, so the night grew darker.

月亮正在亏缺，夜色因此愈来愈暗。

衰退、衰微多用于 on the wane

Support for the new policy is clearly on the wane.

民众对新政策的支持明显正在衰退。

月亏、亏缺期天文

Farmers once planted according to the wane of the moon.

农民以前会依照月亏的时节来耕种。