One, two, three, four, five, six, seven, eight, nine, ten,
eleven, twelve, twenty, thirty, forty,
a hundred, thousand, ten thousand
First, second, third, fourth, fifth, sixth, seventh, eighth, ninth, tenth,
eleventh, twelfth, twentieth, thirtieth, fortieth,
hundredth, thousandth, ten thousandth
数字+years old
a/an-数字-year-old+名词
at the age of+擞字
in one's+整数基数词的复数(在某人十几岁时)
a man of+数字
分子用基数词,分母用序数词
分子大于1,分母结尾加s
基数词在前,percent在后,
百分比写作percent或per cent
小数点读point
两倍twice三倍three times(数词+times)
名词+基数词(首母大写)
the+序数词+名词
世纪;年代 in the 1980s
年份 in 1945
季节 in spring
月份 in March
非具体的早中晚 in the morning
星期 in Monday
节日,具体天 on April 23
具体天的早上等 on the morning of July 3
前带修饰语 on a cold evening
钟点 at twelve o'clock
黎明;拂烧;黄昏;夜晚;周末、圣诞节