vt. heave
misc. rise and fall regularly ; move up and down
海鸥随浪花一起一伏地漂浮在水面。
Seagulls bobbed on the waves.
《牛津词典》
罗克珊抑制满腔的怒火，胸膛一起一伏。
Roxana's bosom was heaving with suppressed passion.
youdao
沼泽上的柳树，随风一起一伏，泛出白光，就象一片麦田一样。
The willows over all the fen rippled and whitened like a field of wheat.
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