官网,个人比较推荐电脑版的使用感受)11566cambridge dictionary
[气球r]分为5级, 五个等级:pre-primer,primer,1st grade,,2nd grade
webster's new world thesaurus(《韦氏新世界英语同义词词典》)是一
在dictionary里面查询 beautiful这个词,显示的是:having qualities
primer,1stgrade, 2ndgrade,3
Tips:Do Not Provide
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