Correct
海誓山盟
/ hǎi shì shān méng /
Strokes
Definition
to pledge undying love (idiom); oath of eternal love/to swear by all the Gods
Example
Definition
solemn pledge of love; pledge of eternal loyalty; vow of eternal love
1
Tāmen
他们
yǐ
已
sīxià
私下
hǎishìshānméng
海誓山盟
,
zhōngshēn
终身
xiāngài
相爱
。
They have secretly exchanged vows and made pledges of eternal love.