你要知道，成千上万的残障人士每天都在上网，甚至更多的人位于恶劣的浏览环境和困难的工作环境。
Millions of people with disabilities are surfing the Internet every day, and even more millions are using poor browser equipment, or working under difficult user environments.
人的情感是易变的，人际沟通是困难的，加上道德环境的恶劣和道德控制的失度，都会影响道德情感功能的正常发挥。
Many factors can affect the function of morality emotion as follows: fluctuating emotion, difficult communication, bad morality environment and broken morality control.
当海难事故发生时，由于海洋特殊的环境因素及恶劣的气候，此时的救援工作往往比较困难。
When ocean accidents happen, submarine rescue often has much difficulty because of special environment of ocean and bad climate.
蚊子变得能在许多环境恶劣的地方生存和繁殖下去。要想在对环境不造成严重损害的情况下杀灭蚊子已经变得越来越困难了。
And mosquitoes tend to settle and reproduce in environmentally sensitive areas, making it much more difficult to kill them off without seriously damaging the environment.
如今，经过数千年在这恶劣的环境下生存繁衍，阿德利企鹅遇到了它们不能抗衡的困难——我们人类。
Now, after flourishing for thousands of years in the harshest environment on earth, the Adélies in one part of Antarctica have encountered an obstacle they seem unable to overcome: Us.
尽管他们都远离家乡和亲人，尽管他们全都身患各种高原疾病，可是每次他们面对困难，面对恶劣的环境，都从来没有退缩过。
Though they are far away from their hometown and relatives , and they are suffered from all kind of plateau sick. they do not withdraw when they are in difficulty .
目前分布式测控系统广泛应用于各行各业，多数分布式系统中控制终端地理上分散、所处环境恶劣、拆装困难，终端控制程序远程更新的问题亟待解决。
Now distributing center system is used widely, the controlling terminals are located dispersedly in the system where the environment is bad and it's difficult to fix and remove them.
但由于无线传感器网络工作环境的恶劣和节点资源受限(能量、内存和处理能力)等因素，使得延长网络的生命周期极为困难。
However, the atrocious environments of WSNs and the constraint of resources in nodes, such as energy, memory, and processing capacities, make it hard to maximum the lifetime of the whole network.
但由于无线传感器网络工作环境的恶劣和节点资源受限(能量、内存和处理能力)等因素，使得延长网络的生命周期极为困难。
However, the atrocious environments of WSNs and the constraint of resources in nodes, such as energy, memory, and processing capacities, make it hard to maximum the lifetime of the whole network.
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