SOS
柯林斯词典
1. N-SING An SOS is a signal which indicates to other people that you are in danger and need help quickly. 紧急呼救信号
The ferry did not even have time to send out an SOS. 这艘渡船甚至没有时间发出紧急呼救信号。
返回 SOS
SOS /ˌɛsəʊˈɛs/
剑桥词典
- a request for help , especially because of danger
求助；（尤指）紧急呼救（信号）
Within an hour of the ship transmitting an SOS (message /call ), six boats had arrived and started a rescue operation . 这艘船发出紧急呼救信号后不到1个小时，就有6艘船到达现场实施救援。
The hospital sent out an SOS for extra blood supplies . 这家医院发出紧急求助信息，希望获得额外的血液供应。 返回 SOS