Definition: to be unable to live or work without someone or something Level: C1
没有智能手机我简直寸步难行。
I'd be ___lost ___without my smartphone.
没有我们的项目经理，我们团队会一筹莫展。
Our team would be ___lost ___without our project manager.
依赖了她多年后，没有了她的指导，他感到完全不知所措。
After years of relying on her, he felt utterly ___lost ___without her guidance.
