well up
动词 v.
形容词 adj.
英文释义
动词 v.
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To gradually or steadily flow upwards or outwards so as to begin to fill or overflow something.
— Oil was welling up out of the borehole.
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To accumulate within one, to the point of overwhelming one.
— Emotion welled up inside me.
形容词 adj.
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Well versed; well acquainted (in or on).
— How well up are you on algebra?
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数据来源: Wiktionary