Neisser's reaction
[医] 奈瑟氏反应(胂凡纳明治疗梅毒的反应)
🧩 词语组成解析
🗣️ 情景例句
Excuse me, but may I ask how old you are?
对不起， 我能问一下你多大了吗？
We kept on discussing the problem for four hours.
我们持续讨论那个问题达四小时。
Tomorrow is christmas Eve, and my father and I went to choose a Christmas tree today.
明天是圣诞节前夜，今天我和父亲去选圣诞树。