| 释义 |
The archway curves to a point.拱门的曲线交合于一点。All beings are probably produced by a similar mode of generation, depending on the concourse of the two sexes.所有生物很可能都以相似的方式繁育，都依赖于两性的交合。Sexual acts do not necessarily lead to pregnancy, but pregnancy does not occur without coitus.性行为不一定导致怀孕，但没有性交合肯定就不会怀孕。 |