dài / yùn / shè / jí / yī / liáo / fǎ / lǜ / hé / lún / lǐ / děng / xǔ / duō / fù / zá / wèn / tí代孕涉及医疗、法律和伦理等许多复杂问题。Surrogacy involves many complex medical, legal, and ethical issues.