。
Medicine should be kept out of children's reach.
Literal
Medicine [topic-は] child [poss-の] hand [subj-の] not-reach place [loc-に] put [should-べきだ].
Expresses a normative obligation with ~べきだ ('should, ought to'). ~べき attaches to the dictionary form and carries a moral or socially expected force — stronger and more abstract than ~た方がいい, and common in written or formal language. The plain copula だ closes the assertion firmly.