Meaning of xuān shì:
xuān shì
宣誓
Verb
to swear an oath (of office); to make a vow
Xīn zǒngtǒng jīntiān jìnxíngle xuānshì yíshì.
新总统今天进行了宣誓仪式。
The new president held the swearing-in ceremony today.
Tā zài gōngzhòng miànqián zhèngshì xuānshì.
他在公众面前正式宣誓。
He formally made a vow in front of the public.