我心怀疑虑地看着他用一张被特殊溶液浸湿的图画纸把一只锡罐包起来，然后将锡罐与电池的正极连接好。

I watched skeptically as he wrapped a tin can with a piece of drawing paper dampened with a special liquid, then linked the can to the positive pole of a battery.

youdao

我心怀疑虑地看着他用一张被特殊溶液浸湿的图画纸把一只锡罐包起来，然后将锡罐与电池的正极连接好。

I watched skeptically as he wrapped a tin can with a piece of drawing paper dampened with a special liquid, then linked the can to the positive pole of a battery.

youdao