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单词
研究开发
例句
DEFINITIVE EXAMPLES 权威例句
〔cautious〕
Companies seem cautious about investing(=are unwilling to invest) money in research and development.公司在
研究开发
方面的投资似乎比较谨慎。
麦克米伦高阶
随便看
to range
to rank
to ransom
to rasp
to rat
to rationalize
to rattle
to rave
to raze
to reach
to reach a conclusion
to reach out to
to read
to read through
to read widely
to realise
to realize
to reap
to rear
to rearrange
to reason
to reason with
to reassert
to reassess
to rebel
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更新时间：2026/7/24 23:26:52