These two features make shadow detection and removal very challengeable.这两个特征使阴影的检测和消除具有相当挑战性.Freelancer is toilsome and enjoyable; it is a challengeable occupation full of more feelings of achievement!自由翻译是辛苦的、也是快乐的; 是具...

[法] 应回避的，可拒绝的...

challengeable的音标：...