1. 营救;救援;救助
    If you rescue someone, you get them out of a dangerous or unpleasant situation.

rescue

    e.g. Helicopters rescued nearly 20 people from the roof of the burning building...
           直升机从失火大楼的楼顶救出了将近20人。
    e.g. He had rescued her from a horrible life.
           他把她从可怕的生活中解救了出来。

2. 营救;救援;救助
    Rescue is help which gets someone out of a dangerous or unpleasant situation.

rescue

    e.g. Lights clipped onto life jackets improve the chances of rescue...
           别在救生衣上的灯提高了获救可能性。
    e.g. A big rescue operation has been launched for a trawler missing in the English Channel.
           为寻找在英吉利海峡失踪的一艘拖网渔船，人们展开了一场大规模的搜救行动。

3. 营救行动;救援行动;救助行为
    A rescue is an attempt to save someone from a dangerous or unpleasant situation.

    e.g. A major air-sea rescue is under way...
           一场大规模的海空营救行动正在进行。
    e.g. Five children were pulled from the smoke-filled house in heroic rescues by fire crews.
           在消防人员英勇的营救行动中，有5个孩子从浓烟弥漫的房子里被救出。

4. 前去营救;前来救援
    If you go to someone's rescue or come to their rescue, you help them when they are in danger or difficulty.

    e.g. The 23-year-old's screams alerted a passerby who went to her rescue...
           那个23岁女孩的尖叫引来了一位过路人前去营救。
    e.g. The crisis puts strong political pressure on the state government to come to the rescue.
           这次危机给前来救助的州政府带来了巨大的政治压力。