challengen.挑战;邀请比赛;盘问;质疑v.向 ... 挑战;盘问;质疑
challenge from globalization全球化挑战
challenge in the guest court客场挑战
Challenge sb's right to vote面貌有很大改观
challenge-response protocol挑战-应答协议
Challenge for the French left法国右翼的挑战
challengesb.'s right to vote马到成功
challenges and opportu-nities挑战与机遇
Challenges for a Webbed Society网络社会的挑战
Challenge of growing air traffic空中航线面临挑战