The futures industry has once fallen into the most lonely low ebb.

期货业也一度陷入了最最寂寞的低谷。

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She has once fallen in love with him, but she hates him deeply now.

她过去曾深爱过他，但现在她对他恨之入骨。

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Once, more than fifty hundred pairs of bald eagles nested across the country, but by 1960 that number had fallen below four hundred.

曾经有超过五千对白头海雕在全国各地筑巢，但到了1960年这一数字已降至四百以下。

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This is my fourth year at CES and I had not once fallen for CES corporate shenanigans until now.

FORBES: Falling For CES Shenanigans

And if Intel is not careful, it will be surpassed by a once-fallen rival such as NVIDIA, which is making a resurgence.

FORBES: Intel's Still One of the Cheapest Stocks on the Market

"He was a safe driver and in all the times that he rode for me, he has only fallen off once, " he said.

BBC: Tributes to Adrian McFarland killed in crash