ぎりぎり の訳語→ full just millimetre possible real securely
だけ の訳語→ all but confine confined entirely even exclusively least merely only own precisely simply very
狭い の訳語→ constricted cramped little parochial short small tiny
限界 の訳語→ best bound end envelope parameter terminus
限度 の訳語→ extent limitation
制限する の訳語→ abridge curtail restrict