围绕试管婴儿的伦理问题很复杂，但拥有孩子的愿望是一项基本人权。
The ethical issues surrounding IVF are complex, but the desire to have a child is a fundamental human right.
Customer satisfaction should always be at the heart of every decision.
The meat processing industry has a responsibility to provide safe, high-quality products to consumers.
说到底，作家只是他书的一半。另一半是读者，作家从读者那里学习。