усложнять bedeutet auf Englisch

aggravate [aggravated, aggravating, aggravates]▼(To give coloring to in description; to exaggerate; as, to aggravate circumstances)
verb
[UK: ˈæ.ɡrə.veɪt] [US: ˈæ.ɡrə.ˌvet]

complicate [complicated, complicating, complicates]▼(to combine intricately)
verb
[UK: ˈkɒm.plɪk.eɪt] [US: ˈkɑːm.pləˌket]