to undulate
01
波动, 使波动
to cause a surface to form small waves or ripples
例子
The breeze undulated the pond's surface, making the sun's reflection dance.
微风波动了池塘的表面，使太阳的倒影舞动。
02
波动, 起伏
to fluctuate in volume or pitch in a wave-like pattern
例子
The sound of the siren undulated as the ambulance sped past us.
救护车从我们身边疾驰而过时，警笛的声音起伏。
03
波动, 起伏
move in a wavy pattern or with a rising and falling motion
04
波动, 起伏
occur in soft rounded shapes
undulate
01
波状的, 起伏的
having a wavy margin and rippled surface
词汇树
undulating
undulation
undulatory
undulate
undul
