Vocabulary Matching (U1-Quiz-3) [1]__ concern [6]__ secure [11]__ be/get bogged down [2]__ contest [7]__ stiff [12]__ bide one’s time [3]__ objective [8]__ withstand [13]__ bring to a halt [4]__ obstacle [9]__ at the cost of [14]__ catch sb. off guard [5]__ responsible [10]__ be faced of [15]__ drag on [A] 陷入困境 [F] 使停止 [K] adj. 呆板 ; 坚硬的 [B] 以 ... 为代价 [G] n. 障碍 , 干扰 [L] v. 争辩 [C] 面对 [H] v. 抵抗 [M] 趁某人不备 [D] adj. 负责的 [I] adj. 客观的 [N] 拖延 [E] 等待时机 [J] adj. 安全的 [O] v. 关心