在怀孕时就为子女定下婚约。

[parental betrothal;the two (the boy and the girl) had been engaged to each other before they were born] 旧指胎儿还在母体中就由双方父母作主订婚

怀孕：

妇女或雌性哺乳动物有了胎。

婚约：

男女双方对婚姻的约定。

子女：

1.男和女。

2.美女;年青女子。

3.儿女。