(n.) 节期,时令;旺季;活跃季节
November is the high tourist season for southeast Asia.
十一月是东南亚旅游的旺季。
backpack 
(vi.) 背负简便行李旅行
Some people can spend years backpacking around the world.
有些人可以背背包环游世界旅行很多年。
drop in
顺便走访
Feel free to drop in anytime. I'm usually home and I'd love the company.
欢迎随时来坐坐，我通常在家，也喜欢有人作伴。
