Hailstones are hard pellets of ice usually of only a few millimetres in diameter although larger stones occasionally occur 雹是坚硬冰丸,通常直径祗有几毫米,间中亦有较大的冰雹出现。
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Hailstones are hard pellets of ice usually of only a few millimetres in diameter although larger stones occasionally occur 雹是坚硬冰丸,通常直径祗有几毫米,间中亦有较大的冰雹出现。