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单词 semaphore
释义
semaphore
(seməfɔːʳ )
uncountable noun
Semaphore is a system of sending messages by using two flags. You hold a flag in each hand and move your arms to various positions representing different letters of the alphabet.
He can use semaphore flags if he wants.
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更新时间:2024/11/11 8:23:33