undulate是什么意思 a. 波动的, 起伏的vi. 波动, 起伏, 呈波浪形vt. 使起伏, 使波动 v. increase and decrease in volume or pitch, as if in wavess. having a wavy margin and rippled surface undulate的用法和例句: 1. The garlands don't match, the undulations of th...