Vocabulary consisting only from characters you are able to read
母国語
ぼこくご
mother tongue, native languagemix
別に
べつに
(1)(not) particularly, nothing, (2)separately, apart jlpt3
使う
つかう
(1)to use (a thing, method, etc.)/to make use of/to put to use/ (2)to use (a person, animal, puppet, etc.)/to employ/to handle/to manage/to manipulate/ (3)to use (time, money, etc.)/to spend/to consu godan, jlpt5, leda1, verb, vtrans