除这点之外，老人仍需要年青人照顾,尽管先进国家如英国在技术上可对老人提供某些帮助。 20世纪之后，大多数发达国家人的平均寿命已经有了很大的提高（30年以上）。
Beyond a certain point, the old will need younger people to look after them – although technology is likely to provide some help in advanced countries such as the UK.
发达国家有雄厚的资金、先进的技术和管理知识。
Developed countries have sufficient funds, advanced technology and managerial expertise.
从各自的比较优势看，发达国家有关键技术、装备先进，但成套装备和产品因价格较高、销路受限；
Talking about comparative strengths, developed countries have advanced key technologies and equipment, but the demand for their products and equipment is limited due to high prices.
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