[mass noun]the relationship between brothers
兄弟关系。
the feeling of kinship with and closeness to a group of people or all people
手足情谊
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a gesture of solidarity and brotherhood .一种团结一致和注重手足情谊的姿态。
association, society, or community of people linked by a common interest, religion, or trade
协会;修士会;同业公会
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a religious brotherhood .宗教修士会。
〈北美〉 工会。
"Middle English: probably from obsolete