Dehs
abbr. diethylhexyl sebacate 二乙基己基癸二酸盐; diethylhydrogensilyl 二乙基氢甲硅烷基; Division of Emergency Health Services (VSPHS) 应急卫生服务科（美国公共卫生服务处）; dynamic Echohysteroscopy 动态回声宫腔镜检查术
🗣️ 情景例句
I don't know.
我不知道。
What courses will you be taking this semester?
你本学期打算修什么科目？
How's your English coming along?
你英语学得怎样了？