Maslow's "demand level theory" has announced the different levels of the human demand.

马斯洛的“需求层次理论”揭示了人类需求的不同层次。

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In the 21st century, learning will gradually become a basic human demand, and an important part of our life.

21世纪学习将逐步成为人的基本需求，成为人们生活的一个重要组成部分。

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The farmer said human demand for his "mini-livestock" was growing slowly — from 300 kilograms in 2008 to 900 kilograms last year.

这位农场主说，人们对他的“迷你家畜”的需求正缓慢上升——从2008年的300千克到去年的900千克。

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He says poverty, gender inequality, and conflict contribute to human trafficking, but it is the demand for unreasonably cheap labor and cheap goods that drive this unscrupulous trade.

VOA: standard.2009.10.19

The human rights group Reprieve is submitting a lawsuit that will demand a judicial review of the government decision not to examine Madni's claim that he was one of at least two known suspects that were moved through Diego Garcia.

VOA: standard.2009.07.28

Dr Nahamoo says he doubts that call centres will ever be completely automated, because there will always be some queries that demand human intervention.

ECONOMIST: Monitor: Call and response | The

Although the scope of Mr Augustine's latest review does not allow for such an explicit conclusion this time, it would still be able to place more emphasis on private-sector human spaceflight and demand more unmanned missions to the moon.

ECONOMIST: Human spaceflight: Over the moon? | The

The availability of online translation services such as Google Translate has not put a dent in the demand for human services.

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