At its most effectivelevel, however, listening goes far beyond simply paying attention.
然而，从大多数有效水平来看，倾听远远超过了简单的集中注意力。
2
With the rapid progress of cryptology, especially the public-key cryptology can offer the most effectivelevel of information security.
随着密码技术的飞速发展，特别是公开密钥密码体制的提出，为信息安全提供了最强有力的保护。
3
In order to improve effectivelevel of our country's public policy implementation, this text begins from related theory, puts forward some practicable ways.