Question

undulate 【undulate】v.波动，起伏震动The field of wheat was undulating in the breeze.麦田在微风中起伏。

Accepted Answer

['ʌndʒəleɪt] 
undulatemove in a wavy pattern or with a rising and falling motion
Undulate describes a wave-like pattern. If a sound increases and decreases in pitch or volume like waves, you can say the sound is undulating. When searching for the lost boy, the rescuers' cries undulated through the forest.
The verb undulate comes from the Latin word undula, which means "wavelet" (unda means "wave"). So any action shown with the verb undulate has that waving sense to it. If something moves in a wavy, pattern, for example, it is said to undulate. The wind might cause prairie grass to undulate, or music might cause hips to undulate.
All forms of 'undulate' will appear on average once every 1051 pages.undulateundulationundulatory

Front	undulate
Pron	['ʌndʒəleɪt]
Back	【undulate】 v.波动，起伏震动 The field of wheat was undulating in the breeze. 麦田在微风中起伏。
Vocab	undulatemove in a wavy pattern or with a rising and falling motion Undulate describes a wave-like pattern. If a sound increases and decreases in pitch or volume like waves, you can say the sound is undulating. When searching for the lost boy, the rescuers' cries undulated through the forest. The verb undulate comes from the Latin word undula, which means "wavelet" (unda means "wave"). So any action shown with the verb undulate has that waving sense to it. If something moves in a wavy, pattern, for example, it is said to undulate. The wind might cause prairie grass to undulate, or music might cause hips to undulate. All forms of 'undulate' will appear on average once every 1051 pages. undulate undulation undulatory

Undulate Undulating Sound Verb Means ʌndʒəleɪt V.波动，起伏震动 Field