VERBS | ADVERBVERBS➤be可使用▸➤become開始運轉▸➤remain仍然運轉➤keep sth使⋯持續運轉◇They plan to keep the telescope operational until the end of the decade.他們計劃讓這架望遠鏡用到這個 10 年結束。➤declare sth宣佈⋯開始運轉◇The weapon system was declared operational in June 2004.2004 年 6 月宣佈這一武器系統投入使用。ADVERB➤fully全面運轉◇The equipment is now fully operational.這項設備已全面運轉。
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