【上位】 get or gather together; "I am accumulating evidence for the man's unfaithfulness to his wife"; "She is amassing a lot of data for her thesis"; "She rolled up a small fortune" 集合する、または集まる。
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a substantial increase over a relatively short period of time; "a runup in interest rates"; "market runups are followed by corrections" 比較的短い期間での相当な増加。
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