four /fɔ:/ num. 四,四岁:Two and two make four.二加二等于四。I began to teach myself to read at four. 我四岁时自学阅读。Please arrange them by fours. 请把他们排成四个一组。It's half past four.四点半。The Asian Games meet every four years.亚运会每四年举行一次。the four corners of the earth天涯海角;世界各地:People come from the four corners of the earth to attend the annual festival.人们从世界各地赶来参加一年一度的节日庆典。


fourth /ˈfɔ:θ/ num. 1. 第四:the fourth of May 54 2. 四分之一:Three fourths of the students have been there.四分之三的学生去过那儿。