數字分整數、分數、小數;算式分加、減、乘、除等。
1.表示整數、次數的詞組:個(one),十(ten),百(hundred),千(thousand),萬(ten thousand),十萬(one hundred thousand),百萬(million),千萬(ten million),億(one hundred million),十億(英one thousand million;美billion),百億(英ten thousand million;美ten billion);
一次(once),兩次(twice),三次(three times),四次(four times);
第一次(for the first time),第二次(for the second time),第三次(for the third time);上次(last time),這次(this time),下次(next time)等等。
2.分數、小數:
one half(1/2),one quarter(1/4),five-eighths(5/8),two and two-fifths(2又5分之2),two point eight(2.8),zero point five(0.5),thirty-five point four two nine(35.429),
thirty-nine percent(39%),four per mille (4‰)、4 per cent. 4%等。
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