1. Pyridoxine is essential for the metabolism of amino acids and the synthesis of neurotransmitters in the brain.
（维生素B6对于氨基酸代谢和大脑神经递质合成至关重要。）

2. I take a supplement of pyridoxine to support my immune system and promote healthy nerve function.
（我服用盐酸吡哆醇补充剂来支持我的免疫系统并促进健康的神经功能。）