This allowed the kids to take one of Bliss's standard symbols and just invert the meaning.

蒂姆：这让孩子们可以采用布利斯的标准符号之一，然后颠倒其含义。

More and more mathematicians began to use it, and eventually, it became a standard symbol for equality.

越来越多的数学家开始使用它，最终， 它成为平等的标准符号。