to rely on something when the first option fails
最初の選択肢が失敗したときに何かに頼る (saisho no sentakushi ga shippai shita toki ni nanika ni tayoru)
"If the deal falls through, we’ll fall back on our backup plan."
"もし取引が失敗したら、バックアッププランに頼ることになります。" (moshi torihiki ga shippai shitara, bakkappu puran ni tayoru koto ni narimasu.)
to be the first to report an important piece of news
to be very successful or lucky in something
to trust someone even when you are not sure they are honest
extremely tired and almost falling asleep
A method of trying to gather personal information using dece...
to make time, money, or space available