科学家观察发现，接触阳光时长正常的鱼类在晚上会在鱼缸底部睡得很安稳。

The scientists observed that the tetras that normally spend time in the light do sleep soundly at night, resting on the bottom of their tanks.

youdao

我的办法是，不要将奖金支票邮寄到他们的家里，我们把奖金支票绑在石块上，再将石块沉在一个巨大的水虎鱼鱼缸的底部。

I say, instead of mailing the bonus checks to their houses, we put rocks on them and we put them at the bottom of an enormous piranha tank.

youdao

我的办法是，不要将奖金支票邮寄到他们的家里，我们把奖金支票绑在石块上，再将石块沉在一个巨大的水虎鱼鱼缸的底部。

I say, instead of mailing the bonus checks to their houses, we put rocks on them and we put them at the bottom of an enormous piranha tank.

youdao