Hexoaldose
己醛糖
🗣️ 情景例句
The welcome sign over the door.
门上的欢迎标语。
Fear not the future; weep not for the past.
不要为未来担忧，不要为过去悲泣。
The children were at school, my husband was at work and the house was quiet.
孩子们在上学，我丈夫在上班，家里清静得很。