英语词汇“at one time”的读音、翻译、释义、用法及例句-开邑网

词汇	at one time
释义	at one timeat one time1.■一度, 从前At one time they used to mine coal in these valleys.从前他们在这些峡谷中采煤。
随便看	backward vane backward vision backward voltage backward-wave backward wave backward wave amplifier backward-wave crossed-field amplifier backward wave in traffic flow backward-wave magnetron backward wave magnetron backward-wave oscillation backward-wave oscillator backward wave oscillator backward wave oscillator tube backward-wave parametric amplifier backward wave parametric amplifier backward-wave tube backward wave tube backward welding back ward welding backwash backwash controller backwash effect back washer backwasher

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