掌上词典的主要用户是大中学生。

The students in high schools and colleges mainly use the palm e-dictionaries.

youdao

电子词典主要分为掌上词典、个人电脑词典和在线词典。

E-dictionary refers to palm e-dictionary, personal computer dictionary and on-line dictionary.

youdao

电子词典主要分为掌上词典、个人电脑词典和在线词典。

E-dictionary refers to palm e-dictionary, personal computer dictionary and on-line dictionary.

youdao