The average shooting star is a small fragment of matter usually smaller than a pea and often no larger than a grain of sand.
普通流星通常只是比豌豆还小，而且往往并不比一粒沙子更大的物质碎片。
Eternal love pink carnation composed: 20 cigarettes, greenery, clubmosses, all over the sky star, pink, red ribbon cloth grain wrapping paper.
永恒的爱组成：20支粉色康乃馨，绿叶，石松、满天星、粉红色布纹包装纸、红色丝带。
The stress at star tip of grain was maximal, which is liable to failure.
星尖处的应力最大，是发动机药柱容易失效的部位。
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