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苦手, にがて
1. poor (at), weak (in), not very good (at)
2. not one's cup of tea, not one's favorite
差劲(在……方面),薄弱(在……方面),不太擅长(……);不合口味,非所好
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なんです, なのです
1. it is assuredly that ..., can say with confidence that ...
〜んです句型;可以肯定地说……,可以有把握地说……