SOS
柯林斯詞典
1. N-SING An SOS is a signal which indicates to other people that you are in danger and need help quickly. 緊急呼救信號
The ferry did not even have time to send out an SOS. 這艘渡船甚至沒有時間發(fā)出緊急呼救信號。
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SOS /??s????s/
劍橋詞典
- a request for help , especially because of danger
求助；（尤指）緊急呼救（信號）
Within an hour of the ship transmitting an SOS (message /call ), six boats had arrived and started a rescue operation . 這艘船發(fā)出緊急呼救信號后不到1個小時，就有6艘船到達現(xiàn)場實施救援。
The hospital sent out an SOS for extra blood supplies . 這家醫(yī)院發(fā)出緊急求助信息，希望獲得額外的血液供應。 返回 SOS