新任议员在宪法前宣誓,承诺维护公共利益。Xīnrèn yìyuán zài xiànfǎ qián xuānshì, chéngnuò wéihù gōnggòng lìyì.The newly appointed legislator swore an oath before the constitution, promising to uphold the public interest.
运动员代表在开幕式上庄严宣誓。Yùndòngyuán dàibiǎo zài kāimùshì shàng zhuāngyán xuānshì.The athletes' representative solemnly took an oath at the opening ceremony.
结婚那天,他们在亲友面前宣誓相爱一生。Jiéhūn nà tiān, tāmen zài qīnyǒu miànqián xuānshì xiāng'ài yìshēng.On their wedding day, they swore an oath before relatives and friends to love each other for life.