1.对你来说,买一本电子词典是一个明智的选择。(It is+n.+for sb. to do sth.)
It_is_a_wise_choice_for_you_to_buy_an_electronic_dictionary.
2.有几个因素促成了我的建议。(there be; which引导的定语从句)
There_are_several_factors_which_lead_to_my_suggestion.
3.无论你到哪里去,带着电子词典都很方便,因为它比普通词典小得多。(It is+adj.+for sb. to do sth.; wherever引导的地点状语从句;as引导的原因状语从句)
It_is_convenient_for_you_to_carry_the_electronic_dictionary_wherever_you_go_as_it_is_much_smaller_than_the_common_one.
4.在电子词典中,你会非常快地得到你所想要的。(what引导的宾语从句)
You_can_get_what_you_want_in_the_electronic_dictionary_as_soon_as_possible.
5.查阅这种词典很容易。(动名词短语作主语;习语a piece of cake)
Consulting_this_kind_of_dictionary_is_really_a_piece_of_cake.