Definitions

[1] adj. 在下面的

[2] [经] 优先的, 基础的, 放在下面的

[ ,ʌndә'laiiŋ ]

1. They used the Internet too much because they had some underlying problem that also caused them to neglect their child.
   他们是因为患有一种使他门忽视孩子的基础精神病而过于上网。
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