1·My sex life is my business.
我的性生活是我的私事。
—— 《柯林斯英汉双解大词典》
2·There were no sex differences in the life and environmental sciences.
在生命科学和环境科学中没有性别差异。
3·I think that it's grossly overstated that one needs to have contact with the opposite sex right through the whole of life, in the classroom and outside the classroom and at all ages.
我认为，所谓的一个人需要在一生中保持与异性的接触——无论是课堂上还是课堂外，无论处于哪个年龄段——这种观点过分夸大了。