Such events use a huge infrastructure of production and transmission equipment with many fixed and portable cameras.
这些赛事都要用到大量的制作和转播用基础设备，包括许多固定和便携式的摄像机。
Too many declarations in the past have remained just words on apiece of paper, and many fixed objectives have failed due to thedifficulties of implementation.
过去达成的太多宣言最终都成了一纸空文，许多既定目标也由于在执行过程中困难重重而无法实现。
Too many declarations in the past have remained just words on apiece of paper, and many fixed objectives have failed due to thedifficulties of implementation.
过去达成的太多宣言最终都成了一纸空文，许多既定目标也由于在执行过程中困难重重而无法实现。
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