sprang up
(physics) The creation of excess electron-hole pairs, triggered by impinging beta particles.
(slang) A person interested in or skilled with technology.
simple past tense of spring up
Not solicited; synonym of unsolicited (as used in the full name of the w:en:CAN-SPAM Act to make the backronym work)
市がマリーナを整備した後、海沿いに新しい店が次々と現れた。
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DiQt
Free
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