✔ 最佳答案
holiday and travel
1) check-in counter
2) departed
3) hotel booking
4) travel agency
5) luggage
6) hotel lobby
7) coach
8) tourist guide
9) picture postcard
10) souvenir
drug addiction
1) nicotine
2) carbon monoxide
3) stroke
4) allure
5) first attempt
6) addicted
7)lost life
8) Escatasy
9) lung cancer
air pollution
1) carbon dioxide
2) government policy ( to help)
3) cars realease ( carbon dioxide)
4) (to use) unleaded fuel
5) use less spray
6) avoid using chemicals
7) prefer public transports
8) avoid travel by private cars
9) save energy
10) atmosphere