zhè / ge / yìng / shè / bǎo / chí / yùn / suàn / bù / biàn / yīn / cǐ / kě / yǐ / kàn / zuò / yí / gè / tóng / tài

这个映射保持运算不变，因此可以看作一个同态。

This mapping preserves the operations, so it can be regarded as a homomorphism.