Expressions (phrases, clauses, etc.)
you have only to; all you have to (do); all that's required; as long as; if only
無駄にした時間を取り戻しさえすれば。All you need to do is get back the time you have wasted.
Expressions (phrases, clauses, etc.)
you have only to; all you have to (do); all that's required; as long as; if only