distress signal是什么意思 distress signal怎么读
distress signal的英文翻译是什么意思，词典释义与在线翻译
Noun:- an internationally recognized signal sent out by a ship or plane indicating that help is needed
distress signal的用法和样例
用作名词 (n.)
- The ship sent up distress flares to attract the attention of the coastguard.
这艘船点起了遇险信号以引起海岸警卫队的注意。 - When the captain found the ship was sinking rapidly,he ordered his men to send out a distress signal.
船长发现船在迅速下沉时就命令船员发了遇险信号。
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