The basic structure of ultrasonic vibrators is studied in this paper.

本文给出了一种大功率超声振动子的基本结构。

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Many women really love their vibrators, but that's a personal preference, not an addiction.

有些女性确实很喜欢振动棒，但这属于个人爱好，跟上瘾不是一码事。

youdao

Many women really love their vibrators, but that's a personal preference, not an addiction.

有些女性确实很喜欢振动棒，但这属于个人爱好，跟上瘾不是一码事。

youdao