As she looked at the row of desks and started talking about tectonic plates, her eyes lighted up, her hands moved quickly to emphasize a point and a smile spread across her face.

当她看着一排课桌并开始讲地球的构造板块（tectonic plate）时，她的眼睛变得更亮了，为了强调某一点她的手快速移动着，同时她的整个脸庞都浮现出笑容。

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As she looked at the row of desks and started talking about tectonic plates, her eyes lighted up, her hands moved quickly to emphasize a point and a smile spread across her face.

当她看着一排课桌并开始讲地球的构造板块（tectonic plate）时，她的眼睛变得更亮了，为了强调某一点她的手快速移动着，同时她的整个脸庞都浮现出笑容。

youdao