マストだろう
masutodarō
1. Must be; Probably is
★ Common
Noun
#302049
1. Must be; Probably is
1. mast (of ship)
1. necessary; indispensable
1. seems; I think
2. right?; don't you agree?
1. Probably okay.; It'll probably be alright.
1. If/when one wakes up; When awakened
1. If/when increasing; If/when adding
1. Essential; Necessary
1. Must-do; Essential
1. If/when deceived; If/when tricked