秘(ひ)密(みつ) himitsuを o守(まも)り() mamoriなさい nasai。 Keep the secret. Literal Secret [object-を] keep [imperative-なさい]. 秘密を守る means 'to keep a secret.' ~なさい is the polite imperative — a command, but softer than the bare form. secrets~なさい (polite imperative)
秘(ひ)密(みつ) himitsuを o守(まも)り() mamoriなさい nasai。 Keep the secret. Literal Secret [object-を] keep [imperative-なさい]. 秘密を守る means 'to keep a secret.' ~なさい is the polite imperative — a command, but softer than the bare form. secrets~なさい (polite imperative)