性欲

例句：

1. 1. He was obsessed with the idea ofhaving a child.
   他对拥有孩子的想法着迷。
2. 2. She had a strong sexual desire formen.
   她对男性有很强的性欲望。
3. 3. Thecouple's relationship was based on mutualsexual desire.
   这对夫妇的关系建立在相互的性欲望上。