我们进行了长期不懈的努力。
要解决这些问题可能需要长期不懈的努力。
Thus, long-term efforts may be still needed to solve these problems.
残疾人事业的提升需要全社会的人性化意识，需要我们长期不懈的努力。
Humanized consciousness is needed for the promotion of disabled person 's cause in the whole society, and is also needed our long-term and unremitting efforts.
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