fraternal
adjective uk/frəˈtɜː.nəl/ us/frəˈtɝː.nəl/
兄弟的,手足的relating to brothers
友好的,兄弟般的,亲如手足的friendly, like brothers
The president's official visit marks the start of a more fraternal relationship between the two countries. 总统的正式访问标志着两国间开始建立起一种更加亲密友好的关系。
Related word: fraternally