1. Childhood activities help a child develop responsibility, independence, confidence and competence — the underpinnings of emotional health. 童年活动有助于儿童培养责任感、独立、自信和能力，这些是情感健康的基础。
2. Unix underpinnings and a modern core. Unix架构和现代核心。
3. The microscopic underpinnings of thermodynamics. 它是热力学的微观描述。
4. Now look at some underpinnings of SAX (complete with code examples). 现在，了解一些SAX基础知识(附有代码示例)。
5. Is this wave of affluence a chimera or does it have solid underpinnings? 这波富裕的浪潮纯粹是海市蜃楼还是会奔流不息呢？
