出国前掌握以下英语词汇和表达可以帮助你更好地适应和交流：
1. 基本问候语和礼节用语：如hello, hi, thank you, please, excuse me, sorry等。
2. 自我介绍：如My name is...，I come from...，I am a student/worker等。
3. 交通出行相关：如take a taxi/bus/train/plane, go straight, turn left/right, traffic light等。
4. 购物相关：如how much is it, I want to buy..., where is the nearest...等。
5. 餐饮相关：如restaurant, menu, order, bill, tip等。
6. 住宿相关：如hotel, room, reservation, check-in/check-out等。
7. 紧急情况相关：如call the police/ambulance, help, danger, emergency等。
8. 时间和日期相关：如what time is it, today/tomorrow/yesterday, Monday/Tuesday/Wednesday等。
9. 景点和文化相关：如museum, art gallery, historic site, local customs等。
