at sea Meaning in the Cambridge English Dictionary
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Meaning of “at sea” in the English Dictionary

"at sea" in British English

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at sea

confused: I'm all/​completely at sea with the new ​computersystem.
(Definition of at sea from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"at sea" in American English

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at sea

confused: With no ​data they could ​depend on, they were ​completely at sea.
(Definition of at sea from the Cambridge Academic Content Dictionary © Cambridge University Press)
Translations of “at sea”
in Chinese (Simplified) 困惑的…
in Chinese (Traditional) 困惑的…