There's no need to be so unfriendly towards them.

　　沒必要對他們這么不客氣。

　　She has a very formal manner, which can seem unfriendly.

　　她的舉止很是鄭重其事，有可能會顯得不友好。

　　His tone was curt and unfriendly.

　　他說話的語調粗暴無禮。

　　People always complain that the big banks and big companies are unfriendly and unhelpful

　　人們總是抱怨大銀行和大公司不友善、不愿提供幫助。

　　Judy spoke in a loud, rather unfriendly voice.

　　朱迪說話時聲音很大，十分不友好。