副詞 indefinitely:

1. to an indefinite extent; for an indefinite time

1. A hypothetical particle postulated to be the quantum of gravitational interaction and presumed to have an indefinitely long lifetime, zero electric charge, and zero rest mass.
   引力微子一種假想粒子，被假定為引力相互作用的量子，并被推測為具有無限長壽命、零電荷和零靜止質量
2. A substance believed to maintain life indefinitely.
   長生不老藥被認為可以使生命無限的物質
3. Continuing or lasting for an indefinitely long time.
   長期的，長久的繼續(xù)或保持無限長的時間的
4. Pressure was put on them to delay the games indefinitely.
   他們受到壓力，讓他們把運動會無限期推遲下去。