fall on
phrasal verbfall on/upon somebody/something [no passive] (especially British English)
- to attack or take hold of somebody/something with a lot of energy and enthusiasm袭击;向…进攻;扑向;抓住 - They fell on him with sticks.他们用棍棒袭击他。 
- The children fell on the food and ate it greedily.孩子们扑向食物,狼吞虎咽地吃起来。 
 
- They fell on him with sticks.
- to be the responsibility of somebody(责任)落在…身上;由…负担 - The full cost of the wedding fell on us.整个婚礼费用由我们负担了。 
 
- The full cost of the wedding fell on us.