n. exhalation
科学家发现，各类植物受到攻击时都会发出挥发性有机化合物。
Scientists have found that all kinds of plants give out VOCs when being attacked.
围绕在月球陨石坑周围的喷出物，正是人们所能预料到的在一次爆炸中能得到的物质，爆炸喷发出大量灰尘、土壤和岩石。
The ejecta surrounding the lunar crater is just what one would expect from an explosion ejecting a large volume of dust, soil, and boulders.
从不明飞行物上发出奇特的光。
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