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to undulate
01
起伏, 波动
to cause a surface to form small waves or ripples
Example
The boat 's movement undulated the canal's serene waters, disturbing the reflections.
小船的行动起伏了运河平静的水面，打扰了水中的倒影。
The breeze undulated the pond's surface, making the sun's reflection dance.
微风使池塘的表面起伏，阳光的倒影舞动。
02
波动, 起伏
to fluctuate in volume or pitch in a wave-like pattern
Example
The singer 's voice undulated, creating an enchanting melody that captivated the audience.
歌手的声音波动，起伏，创造出一种迷人的旋律，吸引了观众。
The sound of the siren undulated as the ambulance sped past us.
警报声随着救护车的快速驶过而波动、起伏。
03
波动, 起伏
move in a wavy pattern or with a rising and falling motion
04
起伏, 波动
occur in soft rounded shapes
undulate
01
波状的, 起伏的
having a wavy margin and rippled surface
word family
undul
Verb
undulate
Verb
undulating
Adjective
undulating
Adjective
undulation
Noun
undulation
Noun
undulatory
Adjective
undulatory
Adjective
