squiggle

音标发音

His signature was just a squiggle but only he could make that squiggle.
他的签名仅仅是胡乱写的字，但只有他才能写出这个样儿。
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。
"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。

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

a short line that has been written or drawn and that curves and twists in a way that is not regular