undulate

dulate pattern margin

undulate v.

波動, 起伏, 成波浪形

adj.

波浪形的, 起伏的

英英解釋:動詞undulate:
1. stir up (water) so as to form ripples
同義詞：ripple, ruffle, riffle, cockle
2. occur in soft rounded shapes
同義詞：roll
3. move in a wavy pattern or with a rising and falling motion
同義詞：roll, flap, wave
4. increase and decrease in volume or pitch, as if in waves
形容詞undulate:
1. having a wavy margin and rippled surface