X marks the spot.

X标出了所说的地点。

《牛津词典》

However, he created treasure maps with 'X' marking the spot, buried pirate treasure, and the black spot, "Konstam said."

不过，是他创造出了画着X的藏宝图，埋藏起来的海盗宝藏和黑色斑点。

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Scientists have demonstrated a refined X-ray technique which can spot tiny variations in bone structures.

科学家已经证实一种精密的X光射线技术可以显示骨骼结构中细微变化。

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In conjunction wtih Guy's, King's and St Thomas' School of Medicine in London, doctors will assess patients at the bedside - and also use chest x-rays to spot those who are mis-swallowing their food.

BBC: Food stroke danger investigated

Dr. Griffey first diagnosed pneumonia, but his thoughts turned to TB when a follow-up X-ray showed a dense spot on her lung.

WSJ: TB's Global Resurgence Amplifies U.S. Risk

" Or: "We found a spot on your X-ray and need to look into this.

FORBES: Magazine Article