challenge
n.挑战;盘问;质疑;怀疑
vt.质疑;向…挑战
vi.提出挑战,要求竞赛(或竞争);驳斥
网络解释.挑战;叫板;挑战赛;擂台
词形变化:
复数:challenges 复数:challenged 复数:challenged 复数:challenging 复数:challenges
派生词: challengeable challenger challengingly
vt.1.挑战;怀疑;反对释义下的同义词
doubt confront defy question dispute dare