英语单词“step change”的翻译、意思、音标，是什么意思-英汉词典-毫安网

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单词	step change
释义	step changeBrE /ˈstep tʃeɪndʒ/NAmE /ˈstep tʃeɪndʒ/ noun [usually sing.] (BrE) a big change or improvement in sth 巨大变化；显著进步（或改善）◆His speech called for a step change in attitudes to the environment in the 21st century. 他的演讲呼吁在 21 世纪彻底改变对待环境的态度。
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