collapse v. . a. suddenly fall down, for a building The roof is in danger of collapsing ●火车的重量把桥压塌了 o The bridge collapsed under the weight of the train ●b. fail to continue o The business finally collapsed because of the rising debtscollapse v. ⚫ a. suddenly fall down, for a building ⚫ The roof is in danger of collapsing. ⚫ 火车的重量把桥压塌了 ⚫ The bridge collapsed under the weight of the train. ⚫ b. fail to continue ⚫ The business finally collapsed because of the rising debts