tie the knot

US /taɪ ðə nɑt/
UK /taɪ ðə nɑt/
"tie the knot" picture
1.

结婚, 喜结连理

to get married

:
After dating for five years, they finally decided to tie the knot.
约会五年后,他们终于决定结婚
They're planning to tie the knot next spring.
他们计划明年春天结婚