Have a responsibility. The content crossed out after signing is invalid; Legally speaking, you can't prove that you crossed it out yourself. What you cross out needs the approval and seal of the other party, so it doesn't need to be executed. However, there are legal risks in this way, and the possibility of using fuzzy evidence may be invalid. That is, the current evidence cannot prove to be a valid labor contract and cannot become evidence. It's best to sign a new contract, and don't modify or change it. Article 490 of the Civil Code If the parties conclude a contract in the form of a contract, the contract is established when the parties sign, seal or press their fingerprints. Before signing, sealing or fingerprinting, one party has fulfilled its main obligations, and the contract is established when the other party accepts it. A contract shall be concluded in written form as stipulated by laws, administrative regulations or agreed by the parties. If the parties do not do this in writing, but one party has fulfilled its main obligations and the other party accepts it, the contract is established.