appropriate

Indirectness was the appropriate means for communicating her preference.

迂回地说出她的想法是一种恰当的交流方式。

This book is appropriate for your age.

这本书适合你的年龄。

Wear appropriate clothes for the weather.

穿适合天气的衣服。

That's not appropriate behavior in class.

那在课堂上不是恰当的行为。

Please use appropriate language when talking to elders.

和长辈说话时请使用恰当的语言。