例句：

　　Fifteen points allocated among four goals.

　　15點分布在4個目標(biāo)之中。

　　The level of carbon monoxide in a smoker's blood is four times higher than normal, and it can be as much as fifteen times higher in the blood of heavy smokers.

　　一個吸煙者血液中一氧化碳的水平比正常值高出四倍，而在重度抽煙者的血液里，則可能高出十五倍之多。

　　It was an enormous animal, fifteen or sixteen feet long, and must have weighed from three to four thousand pounds.

　　這是一只巨大的動物，長達(dá)十五到十六英尺，至少有三千到四千磅重。