undulate

vi. 起伏，波动；震动；呈波浪形

vt. 波动；使波动；使起伏；使成波浪形

adj. 波动的；起伏的；波浪形的

中文词源

undulate 波动

来自拉丁语unda, 水，水波，词源同abound,inundation,water, 字母w脱落。

undulate: undulate: [17] Undulate goes back ultimately to Latin unda ‘wave’, source also of English inundate [17], redundant, and surround. This in turn was descended from the Indo-European base *ud-, which also produced Greek húdōr ‘water’ (source of the English prefix hydro-), and variants of which lie behind English vodka, water, and wet.
=> abound, inundate, redundant, sound, surround
undulate (v.): "to move in waves," 1660s, back-formation from undulation. Related: undulated, undulating.

1. und- + -ul- (diminutive affix) + -ate.2. => wavy.3. same PIE base words: vodka, water, wet, otter.

1. As we travel south, the countryside begins to undulate as the rolling hills sweep down to the riverbanks.: 我们一路南行，乡间开始变得起伏不平，绵延的山峦一直延伸到河岸。

2. To undulate more freely, keep you hands about shoulder width apart.: 要波动的更自由些, 保持你的手与肩膀同宽.

3. The species is characterized by its long and lanceolate leaflets with undulate teeth.: 本种以它的长和披针形的小叶具波状的齿为特点.

4. Put forward disposal idea and prevent measurement for quality abnormity undulate appears in entire produce process.: 对生产全过程出现的质量异常波动提出处理意见和预防纠正措施.

5. The way of reckoning for power supply now, makes the linerate undulate greatly at different period.: 目前的供售电结算方式, 使供售电量不同期,线损率大幅波动.