摄氏4度 和 摄氏零下3度 英语怎么说
four degree centigradethree degree below zero centigrade
4 degree centigrade 摄氏4度minus 3 degree centigrade 摄氏零下3度 "-" minus
摄氏4度 4ºC （four degree of centigrade)摄氏零下3度 -3ºC（three degree of centigrade under zero)
