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他把那幅畫修飾了一下,使光亮部分和陰暗部分的對比更加鮮明.He touched up the picture by strengthening highlights and shadows.他還發(fā)現(xiàn)使用鐵催化劑會(huì)使光亮更加明顯.He also discovered that the use of iron catalyst would make the glow even more noticeable....