first fifth
second sixth
third seventh
fourth eighth
ninth twenty-fifth
tenth twenty-sixth
eleventh twenty-seventh
twelfth twenty-eighth
thirteenth twenty-ninth
fourteenth thirtieth
fifteenth thirty-first
sixteenth fortieth
seventeenth fiftieth
eighteenth sixtieth
nineteenth seventieth
twentieth eightieth
twenty-first ninetieth
twenty-second hundredth
twenty-third thousandth
twenty-fourth millionth
在写或读分数时(1/2和1/4除外),我们用基数词和序数词的组合(即分子用基数词,分母用序数词):
(这里a比one更常用)
由一个整数+一个分数构成的数后面可直接跟一个名词的复数形式:
加上of:
half a second半秒种(无 a)
a quarter of a second四分之一秒(有 a)
half+of也可使用,但是of可省略:
Half(of) my earnings go in tax.
我挣到的钱有一半要纳税。
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