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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 laugh off
to launch
to launch an attack
to lay
to lay aside
to lay down
to lay down arms
to lay in
to lay into
to lay out
to lay siege to
to lay the foundations
to laze
to lead
to lead into
to lead the way
to lead to
to leak
to lean
to lean forward
to lean on
to lean over
to leap
to leap in
to learn
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更新时间：2025/1/24 12:32:18