concedevt.承认;给予;让步;认输vi.让步
concaveadj.凹的n.凹面;凹线;凹形
concealedadj.隐藏的;隐蔽的动词conceal的过去式和过去分词.
concealmentn.隐匿;隐蔽;躲藏
conceal fromvt.隐藏
conceal booty窝藏赃物
concealed ore隐伏矿
concealed zhi暗材
concealed work隐蔽工程
concealed body隐身
concealed fire隐藏的火
concealed bend视线不良的转弯处