"Frequency" just means the rate at which air molecules go back and forth, or a voltage fluctuates, and it can be represented as the rate at which a regular squiggle goes up and down.

频率“通常是指空气粒子来回运动的速率或者电压的波动，所以它能代表一个规则波形曲线上下波动的节律。”

youdao

That's because the erratic squiggle is, effectively, the sum of a number of much more regular squiggles, which represent different frequencies of sound.

那是因为不规则的波形曲线事实上由多个规则波形曲线叠加起来的，而每一个代表着声音的不同频率。

youdao

With a squiggle of Laura Bo's pen - her signature was usually unreadable - she could make the check official.

劳拉·波只要大笔一挥——她的签字往往是难以辨认的——就可以使这张支票生效。

youdao

More advanced users can use the squiggle line to expose all open apps, and then use the gaze-and-delete trick to select one.

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People from around the world were there to cheer and shake the Wal-Mart squiggle (the ceremonial twisting of the hips that is a part of their Wal-Mart cheer).

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Market technicians never like to be wrong for more than 15 minutes, so Joe detected every squiggle in the market and fired off snappy teletype messages to the brokers throughout E.

FORBES: Magazine Article