"Written form" means a written contract, letter, telegram, telex, facsimile, or any other form that can tangibly express the contents thereof. 书面形式是合同书、信件、电报、电传、传真等可以有形地表现所载内容的形式。 A data message that tangibly expresses the contents thereof by electronic data interchange, e-mail, or any other means and is readily available for access and inspection shall be treated as a written form. 以电子数据交换、电子邮件等方式能够有形地表现所载内容，并可以随时调取查用的数据电文，视为书面形式。 The parties may enter into a contract by offer and acceptance or any other means. 当事人订立合同，可以采取要约、承诺方式或者其他方式。