英[\'ɑ:djʊəsnɪs]
美[\'ɑdjʊrsnɪs]
The process of integration has the nature of arduousness and protractiveness.
一体化进程有其艰巨性和长期性.
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But we must see complexity and arduousness of this process.
但必须看到这一过程的复杂性和艰巨性.
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