Tardis
/ˈtɑːdɪs/noun
1
- a time machine时间机器。
2
- a building or container that is larger inside than it appears to be from outside外面感觉小而里面大的建筑物（或容器）。
词源
the name （said to be an acronym of time and relative dimensions in space） of a time machine which had the exterior of a police telephone box in the British TV science-fiction series Doctor Who, first broadcast in 1963.