pick up该短语有多种含义，常见的含义有“捡起;接人;养成;学习”。

如：捡起：It's against the rule to pick up the ball. (捡球是犯规的。)接人：The driver stopped to pick up a hitchhiker. (司机停下来让一个搭车人上了车。)养成：It's no easy job to pick up a good habit. (养成一个好习惯并非易事。)学习：If you go to England, you'll soon pick up English. ( 你如果到英国去，很快就能学会英语的。)