In this task, given a sentence in the Chinese language, your task is to convert it into the English language.
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Question: SDMA执行董事洛克萨纳·贝拉斯克斯描述了他们遗赠的收藏品的“稀有性”，并表示这些收藏品将为现有的两个博物馆收藏品增加“深度”。

Answer: Roxana Velásquez, SDMA executive director, described their bequeathed collection's "rarity" and said the pieces would add "depth" to the two existing museum collections.


Question: 巡边员冲了进来，试图控制局面。

Answer: Touch judges rushed in to try to control the situation.


Question: 这位经验丰富的31岁飞行员正在执行夜间任务时，他的飞机在群山之中俯冲坠落。

Answer:
The experienced 31-year-old was on a night mission when his aircraft crashed nose-down among mountains.


