承诺

commitment; promise; pledge; word; bond; assurance; undertaking; covenant; commit; undertake; warrant; guarantee; promise to do sth; undertake to do sth; make a promise; give one's word

直到

until; till; unto; up to; until such time as

永远

forever; always; ever; eternally; perpetually; permanently; evermore; eternal; timeless; everlasting; undying; perpetual; immortal; ageless; for good; for keeps; in perpetuity; for all time; from everlasting to everlasting; eternity; perpetuity