一本好的图画书就像一部无声电影;它不用文字就能讲述一个故事。
能源安全是国家安全的基石,我们要全力保障国家能源供应安全。
运营效率和战略都是创造卓越绩效的关键。
Teach others what you know about baking; the industry grows when knowledge is shared.
The present state of the system of nature is evidently a consequence of what it was in the preceding moment, and if we conceive of an intelligence which at a given instant comprehends all the relations of the entities of this universe, it could state the respective positions, motions, and general effects of all these entities at any time in the past or future.