Sorry about that, let me know if there's any way I can make it up to you.
我很抱歉,有什么能补偿的话请告诉我,我会尽力帮忙的。
It is said that the nerve poison is the more primitive of the two, that the blood poison is, so to speak, a newer product from an improved formula.
据说,神经毒液在两种毒液中是较为原始的一种,而溶血性毒液,打个比方说,是根据改良配方生产的一种较新的产品。