氨基酸是弱酸和弱碱, 因此, 它们是很好的缓冲剂.Amino acids are weak acids and weak bases, therefore, they are excellent buffering agents.缓冲剂可以像烤面包的苏打粉那样使用,它们都能够使ph值保持稳定.Buffers can be used like baking soda will help keep ph stable.着重叙述了缓冲剂原理及...
Being knighted by the Queen was the crowning glory of his long and successful career.由女王授予爵士荣衔是他漫长而成功的经历中的无上荣誉。They just basked in his reflected glory and improvised somewhat.他们只是满足于他留下的光荣和某些临时拼凑出来的东西.Walsham had his mom...
They wolf-whistled at me, and I was so embarrassed I tripped up.他们吹口哨挑逗我，我窘迫之下绊了一跤。She tripped and fell last night and broke her hip.她昨晚绊倒了，摔坏了髋骨。I tripped up and hurt my foot.我绊了一下，伤到了脚。...