lt's fun____(learn)another language.请说明理由
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lt''sfun____(learn)anotherlanguage.请说明理由lt''sfun____(learn)anotherlanguage.请说明理由lt''sfun____(learn)anot
lt's fun____(learn)another language.请说明理由
lt's fun____(learn)another language.请说明理由
lt's fun____(learn)another language.请说明理由
lt's fun_to learn___(learn)another language
学另外一种语言很有趣.
be fun to do sth 做某事有趣