n.或操作或运算
It's 500 miles from here, or as near as makes no difference. 离这儿有500英里，差也差不多。
Water freezes at 32 degrees Fahrenheit (32 F) or zero/nought degrees Celsius (0 C). 水结成冰的温度是32华氏度(32 )或零摄氏度(0℃).
There are 300 students or so in this middle school. 这所中学大约有300个学生。
The farm is about 50 or 60 square kilometers in the area. 这个农场的面积约为50 或60 平方公里。
adj.令人厌烦的；乏味的
