Isoriboflavine
异核黄素
🗣️ 情景例句
about the first Thanksgiving.
第一次感恩节历史剧。
Buck up, Billy, Enjoy yourself.
振作起来，比利，快快活活地过日子。
Susan hasn't been married, neither has Liz.
苏三没结婚，李兹也是。