为了搞清楚这些问题，科学家们把小白鼠放在一个总开着灯的房间里。

To find out, scientists housed mice in a room where the lights were always on.

youdao

为了搞清楚这些问题，科学家们把小白鼠放在一个总开着灯的房间里。

To find out, scientists housed mice in a room where the lights were always on.

youdao