wax and wane
常见例句
- The [protracted] episode illustrates how public health scares wax and wane.
这一迟到的插曲表明，公众对健康的担忧一时高涨，一时低落
ecocn.org - In addition, goblet cells have been shown to wax and wane over the natural history of BE.
此外，杯状细胞在BE发展过程中体积会发生改变。 - Doctors don't know what causes chronic fatigue syndrome, characterized by debilitating fatigue and chronic pain with symptoms that can wax and wane over time.
医生们不知道慢性疲劳综合症的致病原因。该病的特征是使人虚弱无力的疲倦、慢性疼痛，症状的轻重则可能随时间变化。 - Just understand how sectors tend to wax and wane over a full economic cycle.
FORBES: Watch your sectors - Like the British Empire, however, the seafaring group is bound to wax and wane over time.
FORBES: Magazine Article - He would watch the daylight wax and wane on the ceiling, or roaches creep slowly up the wall.
NEWYORKER: Hellhole 返回 wax and wane