无效合同的认定及其处理是合同法理论和司法实践中的重要问题。
To cognize and deal with the void contract is a very important problem in legal study and practices.
无效合同的认定是合同法理论和司法实践中重要而又复杂的问题。
The confirmation of invalid contracts is an important and complex problem in the theory of contract law as well as in the judicature area.
在我国目前的法律规定中，内容违法的民事行为(合同)被绝对地认定为无效。
Civil action (contract) whose content is illegal is absolutely invalid in our present legal provisions.
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