1、Their battle cry will be: "Sign this petition before they sign away your country."
他們吶喊的是：“在他們賣國(guó)之前，在請(qǐng)?jiān)笗虾灻！?/p>

2、They are willing to sign away their entire worldly possessions.
他們愿意簽字放棄所有財(cái)產(chǎn)。

3、The British government is not about to sign away its control of the island.
英國(guó)政府不想簽字放棄權(quán)其對(duì)該島的控制權(quán)。

sign away翻譯