A good book can capture the imagination while improving children's knowledge of the world.
一本好书可以启发孩子们的想象力，同时提高他们对世界的认识能力。
This, he claimed, would cut costs while improving performance and security.
他声称这样能在减少开支的同时提高性能和安全性。
This, he claimed, would cut costs while improving performance and security.
他声称这样能在减少开支的同时提高性能和安全性。
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