She is their oldest female child.

她是他们的长女。

The opposite of brother. The female child in relation to other children of the same parents.

兄弟的反面。与同一父母的其他子女有关的女婴。

If the parents are already keen on providing education for their female child, then they can happily pay for the fare of their child too.

如果父母已经决定为女儿提供教育的机会，他们同样也会很乐意提供这笔经费的。