我们坐在沙滩上，看着海浪一波接一波地滚滚而来，同时享受着纯正的软炸鱼和炸土豆条！

We sat on the beach, watching waves coming over and over again, enjoying pure fish and chips as well!

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这反过来给LIGO的科学家提供了一条在哪寻找引力波信号的新线索。

This in turn would give LIGO scientists an extra clue as to where to search their data for a gravity wave signal.

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锯齿波从某一始点到某一终点沿着一条直线上升(或者下降)，在终点的时候它马上跃迁回其起始值。

A sawtooth wave rises (or falls) in a straight line from a starting point to an ending point, at which time it instantaneously jumps back to the starting value.

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And so there are only two kinds of waves that can exist on this violin string, standing or traveling.

由于这只有两种波,可以存在在这条弦上，驻波或行波。

麻省理工公开课 - 固态化学导论课程节选