4周搞定2000+托福核心词
衰退
wane
常考释义
A waning flood might deposit a layer of gravel, overlain by sand and finally topped by silt and clay.
洪水消退时最先可能会沉积一层砾石，接着沙子会覆盖在砾石之上，最后淤泥和黏土会覆盖在最上面。
来源于：阅读OFFICIAL52 P1vi. 减退；败落
His interest in these sports began to wane.
他对这些运动项目的兴趣开始减退。
A waning flood might deposit a layer of gravel, overlain by sand and finally topped by silt and clay.
洪水消退时最先可能会沉积一层砾石，接着沙子会覆盖在砾石之上，最后淤泥和黏土会覆盖在最上面。
来源于：阅读OFFICIAL52 P1n. 减弱；衰微
Her popularity has been on the wane for some time.
她的人气一段时间以来江河日下。
First, there may be a brief cessation or reduction of breathing when falling asleep as the sleeper waxes and wanes between sleep and wakefulness and their differing control mechanisms.
第一，睡着时呼吸可能会有短暂的停止或减少，因为睡眠者在睡眠和清醒之间徘徊，而这两种状态的控制系统不一样。
来源于：阅读OFFICIAL24 P2If current velocity continues to decrease - as a flood wanes, for example - finer particles settle out on top of the large ones.
如果水流的速度继续减弱——比如洪水消退时——更细的颗粒会沉淀在大颗粒上。
来源于：阅读OFFICIAL52 P1vi. 缺；亏
The moon was waning.
彼时月亮渐亏。
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