/flɔ:(r) ||; flɔr/noun1 [C] [usu.sing] the flat surface that you walk on indoors （室内的）地面；地板: Don't come in -- there's broken glass on the floor ! 别进来，地上有玻璃碎片！a wooden/concrete/marble floor 木板╱混凝土╱大理石地面 ☞Look at the note at ground. 参看ground的注释。
2 [C] all the rooms that are on the same level of a building （楼房的）层；楼层: My office is on the second floor. 我的办公室在三楼。
In British English, the ground floor is the floor at street level, and the floor above is the first floor. In American English the first floor is the floor at street level. 在英国英语中，地面的一层叫ground floor，之上的一层叫first floor。在美国英语中，地面的一层叫first floor。 3 [C] [usu.sing] the ground or surface at the bottom of the sea, a forest, etc （海洋、树林等的）底部: the ocean/valley/cave/forest floor 海底；谷底；洞底；林中地面