大脑有左右两侧，称为 脑半球 ，由一带状纤维（ 胼胝体 ）在中间连结，从而使得两个脑半球能够互相通信。

The cerebrum has right and left halves, called hemispheres, which are connected in the middle by a band of nerve fibers (the corpus collosum) that enables the two sides to communicate.

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朋友们正把玩的时候，我突然感觉体侧有震动。

While they were looking at it, I felt this vibration on my side .

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朋友们正把玩的时候，我忽然感觉体侧有震动。

While they were looking at it, I felt this vibration on my side.

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