看到了这些发泡胶球事实上，可以当作单层金原子核，我们有266个乒乓球。

We have 266, as some of you might know who saw me counting ping-pong balls the other day in office hours.

youdao

胜球玻璃厂发泡产品：颜色鲜亮，永不褪色，工艺成熟，用色标准，图案精美。

Foam Products: The color is fresh, never fade. The crafts is mature and demandable. The pattern is elegant.

youdao

压力球，压力球，个性化的压力球，挤压应力球，发泡压力球。

Stress balls, stress ball, Personalized stress balls, Squeeze stress balls, Foam stress balls.

youdao

We have 266, as some of you might know who saw me counting ping-pong balls the other day in office hours.

看到了这些发泡胶球事实上,可以当作单层金原子核,我们有266个乒乓球。

麻省理工公开课 - 化学原理课程节选