恋爱: (romantic) love, in love, to have an affair...
理性: reason, rationality, rational...
改为: to change into...
负有: to be responsible for...
其: his, her, its, their, that, such, it (refers to sth preceding it)...
背着: turning one's back to (sth or sb), keeping sth secret from (sb), keeping (one's hands) behind one's back...
正: Chinesest month of year, just (right), main, upright, straight, correct, principle...
工程师: engineer...
处于: to be in (some state, position, or condition)...
炮: cannon; gun; firecracker; artillery piece...
