A differentiated part of an organism, such as an eye, a wing, or a leaf, that performs a specific function.
器官一个生物体中起着特定作用的独特部分，例如一只眼、一只翅膀或一片叶子
The house is differentiated from its neighbour by the shape of its windows.
这幢房子和隔壁那幢房子的区别在于窗户的形状不同。
One character is not clearly differentiated from another.
人物之间的区别没有明显刻划出来.
