The other one is that both COM and CORBA are complex software systems with high learning curves and great difficulties in application.
另外一个问题是COM和CORBA都是复杂的软件体系，学习和运用它们都有很大的难度。
The other one is that both COM and CORBA are complex software systems with high learning curves and great difficulties in application.
另外一个问题是COM和CORBA都是复杂的软件体系，学习和运用它们都有很大的难度。
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