英语语法分析

Most surrogates are women, a few are men, and there are married couples that practice surrogacy together.

大部分代理人是女性，也有一些是男性，并有已婚夫妇一起从事性代理工作。

Salivary gland function of residual sugar-free gum can be used surrogacy (gum) stimulation improve its functions.

唾液腺的残存功能可以用无糖胶母（口香糖）刺激提高其功能。

This is called gestational surrogacy and is favored because in some states it gives the carrier no legal rights to the child she gives birth to.

这就是所谓的“妊娠代孕”，之所以受到青睐，是因为在一些州按这个程序怀胎的代理孕妇对生下来的婴儿没有任何法律权利。