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如果没有什么重大变故，我们也许在将来很长一段时间内都能有幸参加三大工程机械展。所有这些都应归功于市场经济这只无形而有力的手。
If nothing serious changes, we may be fortunate enough to participate in the three major construction machinery exhibition for a long time in the future. All this should be attributed to the invisible hand of the market economy.