be appropriate

This explanation is appropriate.

この説明は適切です

This explanation is appropriate for beginners.

この説明は初級者にとって適切です

This explanation is appropriate for beginners right now.

この説明は初級者にとって今適切です

This explanation is appropriate for beginners in class right now.

この説明は初級者にとって今授業で適切です

This explanation is appropriate for use with beginners in class right now.

この説明は初級者にとって今授業で使うのに適切です