当时我们正在飞机上，大约有两个小时的空闲时间。我本来估计过一遍乘法表可能需要20分钟。

We were on a plane and had about two hours to kill. I figured running through the twos to the twelves would take about 20 minutes.

youdao

当时我们正在飞机上，大约有两个小时的空闲时间。我本来估计过一遍乘法表可能需要20分钟。

We were on a plane and had about two hours to kill. I figured running through the twos to the twelves would take about 20 minutes.

youdao