英语翻译两句

Question

极光出现时间短则半分钟,长则有半小时.

这里冬季温为平均1度,夏季不过29度

Answer 1

Aurora appeared a short time is half a minute, or as long as half an hour.

Where the average winter temperature of 1 degree,but 29 degrees in summer

参考资料：原创回答团【No.020】

Answer 2

When northern light appears, it lasts from half a minute to half an hour.

Here the average winter temperature is 1*C, and no more than 29*C in summer.

Answer 3

Aurora appeared a short time is half a minute, or as long as half an hour.

Where the average winter temperature of 1 degree in summer but 29 degrees

Aurora appeared a short time is half a minute, or as long as half an hour.Where the average winter temperature of 1 degree in summer but 29 degrees

Answer 4

Polar lights' apperance usually lasts from a half minute to a half hour.

The average temperature of here is 1 centigrade in winter, 29 centigrade in summer.