Two helicopter crashes in Afghanistan have killed 14 U. S. troops and civilians in one of the deadliest days for U. S. forces since the 2001 invasion.

阿富汗星期一发生两起直升机坠毁事件，造成14名美军和平民死亡。这对美军来说是自2001年进入阿富汗以来伤亡惨重的一天。

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The helicopter crash landed when one of its two engines cut out.

直升飞机两个发动机中的一个突然熄火时，直升机撞地着陆。

《柯林斯英汉双解大词典》

God replied, "Well, I sent you two boats and a helicopter."

上帝说，“对啊，我派了两艘船和一架直升机。”

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In April,the site posted video of an American helicopter strike in Iraq in two thousand seven.

VOA: special.2010.07.31

This helicopter crew knows that. Doctors say these patients need to get medical care within two hours for the best results.

VOA: standard.2010.04.18

Israel responded with tank fire and a helicopter strike, killing two Lebanese soldiers and a journalist.

VOA: standard.2010.08.04

Two helicopter crewmen have been honoured for their role in a North Sea rescue after an oil industry supply vessel was hit by a wave during storms.

BBC: Vos Sailor North Sea death: Helicopter crew honoured

Earlier this summer, two separate helicopter accidents killed six people while they were fighting wildfires.

NPR: No End in Sight for Western Fire Season

Two Apache helicopter gunships roar through the valley, bank hard and circle back over the village, providing more cover for the Afghan and U.S. Special Forces now leapfrogging from one building to another.

NPR: U.S.-Afghan Force Raids Suspected Taliban Hideout