stepchild

/ˈsteptʃaɪld/ 0
Someone's stepchild is a child that was born to their husband or wife during a previous relationship. 继子; 继女

noun [专属名词]妻与前夫所生的孩子;夫与前妻所生子女;受到冷落的人或物

At first, online organizing was a stepchild within Obama's new-media operation.
最初,在线组织只是奥巴马的新媒体计划中的一个“养子”。

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Egencia is the poor stepchild among the three, but indeed there is a huge potential up-side. 易信达虽然是这三者中规模最小的,但是其潜力确实是不可小觑的。
Compared to these database systems, the Apache Derby database may seem like the forgotten stepchild. 与这些数据库系统相比,Apache Derby数据库就像是被遗忘的后娘生的孩子一样。