------ it is to swimming in a hot summer!A.What fun ,B.How f

语法上两个都没错,不过意思完全不一样.
What fun it is to swim in a hot summer!
在炎热夏天游泳有什么有趣的!
How funny it is to swim in a hot summer!
在炎热夏天游泳太好笑/奇怪了!
其实两个都是贬义,不过就意义理解来说,在夏天游泳不应该好笑/奇怪的.