mathematically （algebraically）1+1 is equal to 2
but i real life,it may not neccessarily be true
example - 1 man + 1 woman could result in a family of 3 (with a kid coming along after marriage）
1+1=2的英语演讲文章三分钟的演讲 请高手帮帮忙越快越好 晚上就要用了 我会给很多分的~
mathematically （algebraically）1+1 is equal to 2
but i real life,it may not neccessarily be true
example - 1 man + 1 woman could result in a family of 3 (with a kid coming along after marriage）