1、four:英[f??(r)] 美[f??r]。
2、num. 四。
3、This street is four times shorter than that one.這條街道比那條短四倍。
4、These four causes do not operate singly .這四個原因并不單個起作用。
5、They drew as many as four times that year .他們那一年四次打成平局。
6、You will need an injection every four hours .你要每隔四小時打一針。
