“1+2=3”写句子 用1+2=3造句大全

It is discernable that other students are quite puzzled by why “1+2=3” is wrong while “2+1=3” is right.

我们可以看到其他学生对于为什么1+2=3是错误的而2+1=3是正确的感到十分疑惑。