Practice is the sole criterion for testing truth.
实践是检验真理的唯一标准。
Practice is the sole criterion for testing truth, but we should further study the process for practice to test truth.
实践是检验真理的惟一标准，但对于实践检验真理的过程，尚需进一步研究。
We say that practice is the sole criterion for testing truth.
我们讲实践是检验真理的唯一标准。
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