new
pyrotechnic(al) sponge的英文翻譯是什麼意思，詞典釋義與在線翻譯：
英英釋義
名詞 pyrotechnic:
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(usually plural) a device with an explosive that burns at a low rate and with colored flames; can be used to illuminate areas or send signals etc.
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of or relating to the craft of making fireworks
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suggestive of fireworks
