nature of sex的用法和樣例：
例句
- The vivid nature of these colors coupled with the appropriate background can offer excellent contrast.
這類顏色的鮮明的自然性再加上適當的背景可以提供很好的對照。 - Now fathers are often present at the birth of their children, but they are disrupting the naturalness of childbirth for the mothers, says an expert.
如今父親們常常在孩子出生時待產於一旁，但是有位專家說他們會擾亂母親們分娩的自然性。
