本期內容：

The Van Gogh Museum in Amsterdam is reviewing how it displays the artist's Sunflowers painting after a pioneering new technique revealed the painting's petals and stems were withering to an olive-brown colour as a result of his use of a light-sensitive yellow paint.
A laborious x-ray scan of the painting's canvas has discovered that Vincent van Gogh used two different types of a chrome yellow paint, one of which is more liable to degrade under light.

review: vt. 評估；評論（business review）
display: vt. 展示
pioneering: adj. 尖端的（pioneering spirit）
technique: n. 技術；手段
petal: n. 花瓣
stem: n.（花）莖（stem cell）
wither: vi. 枯萎；衰老
sensitive: adj. 敏感的
paint: n. 顏料
laborious: adj. 耗時費力的；艱難的
chrome yellow: 鉻黃色；亮黃色
be liable to: 很可能會發生的；可能性很大的

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