4VERB 突然闯入(某地);陷入,浑然不觉地进入(某种状态) If you say that someone tumbles into a situation or place, you mean that they get into it without being fully in control of themselves or knowing what they are doing. 突然闯入(某地);陷入,浑然不觉地进入(某种状态) [mainly British]
Many mothers and children tumble into poverty after divorce. [VERB + into]
很多母亲和孩子在离婚后陷入贫困。
There's no thought more pleasing than the prospect of tumbling into my apartment and slamming the door. [VERBinto noun]