They managed to hold on until help arrived.

他们勉强坚持到救援到来。

《牛津词典》

She called 911 and help arrived just in time.

她拨打了 911，救援人员及时赶到。

youdao

The life jacket buoyed her up until help arrived.

救生衣使她浮在水上直到获救。

youdao

His friends called him Doc. About twelve other men also arrived in Dodge City to help Luke Short.

VOA: special.2010.03.10

Jackson decided to attack, to hold them there until Lee arrived with help.

VOA: special.2009.09.24

The Chinese arrived there after eighteen fifty to help build western railroads.

VOA: special.2010.05.20

She held onto a branch in the water for three hours before help arrived, she said.

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Mr. AMOSS: Which makes it all the more inexplicable that help arrived so late.

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This meant Mr Shears' breathing apparatus would have "almost certainly" run out before help arrived, the report said.

BBC: Jim Shears (left) and Alan Bannon