If you're doing really well, try sitting on the bottom of the pool and watch your bubbles rising to the surface. Or even harder, lie on your back on the bottom and watch the bubbles.

如果你真的做得很好，试着坐在池底并观察你吐出的气泡泡慢慢升到水面。

youdao

Try sitting alone in a house and doing absolutely nothing. Sooner or later your hands will reach for the remote control or the newspaper.

试著自己一人坐在屋里，什么事都绝对不做，早晚你的手就会开始找遥控器或报纸。

youdao

Try sitting alone in a house and doing absolutely nothing. Sooner or later your hands will reach for the remote control or the newspaper.

试著自己一人坐在屋里，什么事都绝对不做，早晚你的手就会开始找遥控器或报纸。

youdao