重点讲解：
1. be given over to
专门用于；
eg. Much of the garden was given over to vegetables.
这个花园大部分用来种蔬菜。
eg. The village hall is given over to civic functions and meetings.
村子的礼堂专作举行庆典和会议之用。
eg. The period after supper was given over to games.
晚饭后是游戏时间。
2. tuck into
尽情地吃；大口地吃；
eg. She tucked into a breakfast of bacon and eggs.
她大口地吃着咸肉和鸡蛋作成的早餐。
eg. He tucked into the ham hungrily.
他狼吞虎咽地大吃火腿。
eg. The boy tuck into the salad put in front of him.
男孩大口地吃着放在他面前的沙拉。