需要的单词：
1. tube 乘地铁
2. oyster 沉默寡言的人
3. canteen 食堂；小卖部
4. commute （搭乘车、船等）通勤
一些vocabulary
the tube: an informal name for the London Underground train system
oyster card: an electronic ticket that you can use on any train or bus within London
to do something on an empty stomach: to do something without eating food first
back in a bit: See you soon!
the rush hour: the time of day when the traffic is very busy
a folding bike: a bicycle that folds up so it can be carried easily
a full English breakfast: a large hot meal that some British people eat in the mornings, usually including eggs and bacon
commuting: travelling from home to work and back again
chunks of language: 语言块
take a long time 花费时间
a lot of fun
all over the world