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 want to send this letter to China, by air mail.
我想把这封信航空邮到中国。
Better be the head of the yeomanry than the tail of the gentry.
宁作自由民之首，不为贵族之尾。
What are you going to give our art teacher for Teachers' Day?
教师节你打算送什么礼物给我们的美术老师？