英语词汇“operational sign”的读音、翻译、释义、用法及例句-智慧网

词汇	operational sign
释义	operational signoperational sign1.■运算符号
随便看	weed burner weed ceremony weed cleaner weed competition weed control weed control chemicals weed control equipment weed-control method weed cutter weed-cutting blade weed-cutting launch weed cutting machine weed destroyer weeded weed encroachment weeder weed eradication weed eradicator weeder-mulcher attachment weeder-mulcher broadcast planter weedery weed extractor weed-filled lake weed-filled river well-spoken

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