专家建议，夏日外出尽量避开高温时段，最好不要在中午前后在烈日下行走或劳动，因为这个时间段的阳光最强烈，发生中暑的可能性较高。
According to experts, you should avoid going outside during the hottest part of the day during summer and avoid walking or labor in the sun before or after noon, because these periods of the day are when the sun is most intense and the possibility of heatstroke is highest.