兄弟及表兄弟有血缘关系联系着: brothers and cousins are united by ties of consanguinity
堂兄弟姐妹之一或父系的表兄弟姐妹之一: a cousin on my father's side ie a child of my father's brother or sister
姐妹: 1.(姐和妹) sisters 短语和例子同胞姐妹 sister of the whole blood; full sister; 异父[母] 姐妹 half sister; 姐妹之情 the affection of elder and younger sisters; 这姐妹俩容貌极相像。 the two sisters are as like as two peas.
