n.[U]

1. 俯伏
   Proneness may be an unsafe position for newborns.

   俯伏姿勢對新生兒可能不安全。

2. 傾向
   In his opinion, that man's pronenessto trust in superstitions was a reflection on his natural ability.

   依他的看法，那個人相信迷信的傾向是他自然能力的反映。