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Collins 词频等级为 1，建议结合例句记忆，而不是只背中文释义。
向上流动
upstreaming — present participle of upstream
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向上流动；被相关软件的原始开发者接受和维护；向上游；逆流地；向上游的
To stream upward.
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向上流动
To stream upward.
被相关软件的原始开发者接受和维护
To have (a software library, patch, etc.) accepted by the original developers of the related software, so that they maintain and distribute it.
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发长 /iː/ 音 (如 sea, tea)
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Collins 词频等级为 1，建议结合例句记忆，而不是只背中文释义。
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY, WORDNET.