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1·Progress is best made through discussion among people who have contras ting points of view.

在持不同意见的人们中展开讨论是进步的最佳方式。

2·The result seemed fine when viewed with the naked eye, but under the microscope the resolution and contras were poor.

当用肉眼看时，摄影效果似乎不错，但在显微镜下观察时，清晰度和反差都比较差。

反差

1·The result seemed fine when viewed with the naked eye, but under the microscope the resolution and contras were poor.

当用肉眼看时，摄影效果似乎不错，但在显微镜下观察时，清晰度和反差都比较差。