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All responsibility is attributed to someone or something.
这起交通事故的全部责任在于对方司机。
All responsibility for this traffic accident lies with the other driver.
根据合同条款，违约的全部责任在于乙方。
According to the contract terms, all liability for breach of contract lies with Party B.
Commonly used in legal, contractual, or formal contexts to assign blame or liability.
In legal documents, this phrase is precise and binding. In casual speech, use simpler alternatives like '都是你的错' (It's all your fault).
This phrase assigns 100% responsibility. Never use it if responsibility is shared; use '部分责任在于' (partial responsibility lies with) instead.
The phrase combines '全部' (quánbù, 'all/entire') + '责任' (zérèn, 'responsibility') + '在于' (zàiyú, 'lie in/depend on'). It is a direct construction in Chinese legal and formal contexts, with no foreign origin.
1) Used in official reports, contracts, or legal documents. 2) Often appears in statements assigning fault (e.g., '事故责任认定书'). 3) Avoid using in casual conversations; it sounds overly formal.