To tamper/'tæmpə(r)/with sth - to touch or make changes to something that you should not, often in order to damage it
Ru: (тайно) подделывать, изменять что-либо
Manga: Death Note
Inherit/ɪn'herɪt/- If you inherit a problem, situation, or belief, it is passed on to you by someone who had it before
Ru: унаследовать, получитьAverage/'æv(ə)rɪdʒ/- usual and like the most common type
Ru: обычный, средний
Manga: The Case Study of Vanitas
(A bit of/ kind of) a mouthful/'maʊθfʊl/ - a long word or sentence, or something said that has a lot of meaning
Ru: труднопроизносимое слово, фраза; золотые слова
Manga: Fullmetal Alchemist