cabin 多指建造粗糙的简陋小木屋，也指旅客或船员住的船舱。现在也指节假日游游者的简便住房。
cottage 指穷苦人住的乡间小茅屋。现在也指雅致的小住宅，在美国可指别墅。
but 多指供居住或遮避风雨的简易小屋。
shed 一般指四壁没有完全封闭，供牲畜用或储藏东西、停放车辆等的简易棚屋。
参考例句
1. The north wind howled around our cabin. 北风在我们小屋的周围怒号。
2. She felt sick and went to lie down in her cabin. 她感觉有些恶心，回她的房舱去躺下休息了。
3. When Balrogs invade the ship, you better avoid them. The cabin is the safest place! 当蝙蝠魔侵入船的时候，你更好避开它。船舱是最安全的地方！
英英解释
n.
1. small room on a ship or boat where people sleep
2. a small house built of wood; usually in a wooded area
3. the enclosed compartment of an aircraft or spacecraft where passengers are carried v.
1. confine to a small space, such as a cabin
