Difficult words: tech-centric (focused on technology), unveiling (revealing), spectrum (range), humanoid (resembling a human), exemplifying (illustrating), aspires (hopes), infused (filled), catering (providing for).

较难的词语：tech-centric（专注于技术）、unveiling（揭示）、spectrum（范围）、Humanoid（类似人类）、exemplifying（说明）、aspires（希望）、infused（填充）、迎合（提供）。