All of us can pack a healthy lunch for our son, or go outside and play ball with our daughter.

我们都能为儿子收拾干净的午餐，或外出与女儿一起玩球。

youdao

One day, physicist Ho-Kei Chan of Trinity College Dublin was playing with steel ball bearings, trying to pack them into a little cylindrical tube in the most efficient way possible.

一天，都柏林大学圣三一学院的物理学家陈和奎正拿着一些铁珠玩耍，试图将他们以最有效的方法装进一个小的圆柱型管子里。

youdao

All of us can pack a healthy lunch for our son, or go outside and play ball with our daughter.

我们都能为儿子准备健康的午餐，或与女儿一起外出打球。

youdao

"They are a strong team with good backs and some strong ball carriers in their pack, " he said.

BBC: Tigers aiming for treble - Flood

"Over the years, our pack could create ball, but we just didn't always have the nous to score the tries, " added Bulloch.

BBC: Scots need spirit of 1999

The notoriously nervy Holt looked to have lost the plot when he careered the cue ball off a cushion into the pack of reds at high speed.

BBC: CHOOSE A SPORT