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 have been a poor student of foreign languages.
外语就学得不好。
It is easier to descend than to ascend.
下降容易上升难。
I though so.Who's that beside her?
我也这样想。她旁边的那个人是谁？