legal activities的用法和样例：
例句
- Transaction security is deliberately founded to protect the reliance sense of transaction parties who believe that a legal act of transaction nature is valid.
交易安全旨在保护相信具有交易性质的法律行为成立并生效的交易主体的信赖。 - The intermediary is carries on the civil legal act for the trustee with the third person to report the information opportunity or provides the medium relation intermediate.
居间人是为委托人与第三人进行民事法律行为报告信息机会或提供媒介联系的中间人。
