| 释义 |
Example sentencesdifficult challenge COBUILD Collocationsdifficult challenge accept a challenge address a challenge aerial challenge big challenge confront a challenge constant challenge court challenge daunting challenge different challenge difficult challenge embrace a challenge enjoy a challenge enormous challenge exciting challenge face a challenge formidable challenge fresh challenge gruelling challenge highlight the challenge intellectual challenge issue a challenge launch a challenge like a challenge main challenge major challenge massive challenge meet a challenge new challenge overcome a challenge prove a challenge real challenge represent a challenge serious challenge significant challenge tackle a challenge technical challenge throw down a challenge unique challenge |