a gale warning to shipping
a gale warning to shipping 向船只发出的大风警告 Let that be a warning to you, ie Let that (accident, misfortune, etc) teach you to be more careful in future.
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a gale warning to shipping
对船舶发出大风警告
以上为机器翻译结果，长、整句建议使用 人工翻译 。