(verb.) make an error; 'She slipped up and revealed the name'.
(verb.) miss a step and fall or nearly fall; 'She stumbled over the tree root'.
(verb.) walk unsteadily; 'The drunk man stumbled about'.
(verb.) encounter by chance; 'I stumbled across a long-lost cousin last night in a restaurant'.
整理:胡安妮塔
整理:莫顿