VERB
(人)步履蹒跚，踉踉跄跄;(物)摇摇欲坠，东倒西歪
If someone or something teeters, they shake in an unsteady way, and seem to be about to lose their balance and fall over.
例句
Hyde shifted his weight and felt himself teeter forward, beginning to overbalance...
海德转移了一下重心，就感到自己往前倾，开始失去平衡。
He watched the cup teeter on the edge before it fell.
他眼看着茶杯在边上摇摇欲坠，然后掉落。