“up-and-down movement”的概念、定义、翻译、参考文献-科学参考

单词	up-and-down movement
释义	up-and-down movement 垂直往复运动垂直运动升降运动上下运动
随便看	trade mark registration trademark registration administration trademark registration fee trademark registration law trademark regulations trade matrix trade method trade mission trade multiplier trade name tradename trade name aspirin trade negotiation trade-off trade-off between risk and rate of return trade-off curve trade-off process trade-off studies trade-off value trade on one's own account trade organization trade partner trade partners trade payable trade payable turnover period

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