unleased Crown land 未批租官地
Explanation: on Valentine's Day (ET) the Sun unleased one of its most powerful explosions, an X-class flare.
解释：就在情人节这天(美国东部时间)，太阳释放了它最具力量的爆炸之一——一个X级的耀斑。
youdao
He fired 16 of 17 executives and sold or unleased 80 of Mesa's 180 planes.
FORBES: Second act
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