百分数中的百分号%读作percent。如:
6%读作:six percent
0.6%读作:(nought)point six percent
500%读作:five hundred percent
12.34%读作:twelve point three four percent[1]
加减乘除读法
6+5=11 Six plus five is eleven 或 Six and five is eleven.
11-6=5 Eleven minus six is five. 或 Six from eleven is five.
4×5=20 Four multiplied by five is twenty.或 Four times five is twenty.
20÷4=5 Twenty divided by four is five. 或 Four into twenty goes five.
15:5=3 The ratio of fifteen to five is three.
2的2次方是4 2^2=4 Two squared is four.
2的3次方是8 2^3=8 Two cubed is eight.
2的4次方是16 2^4=16 The fourth power of two is sixteen.
X^(1/2)=Y The square root of X is Y.
X^(1/3)=Y The cubic root of X is Y.
a > b a is more than b.
a < b a is less than b.
a ≈ b a approximately equals to b.
a ≠ b a is not equal to b.[1]
分数表示法
(1) 较小分数的一般读写方法。如:
1/3 one-third 2/3 two-thirds 3/5 three-fifths
(2) 较复杂分数的简明读写方法。如
22/9 twenty-two over nine
a/b a over b 或 a divided by b 43/97 forty-three over ninety-seven
(3) 整数与分数之间须用and连接。如:
four and a half nine and two fifths
(4) 分数用作前置定语时,分母要用单数形式。注意下列写法与读法。如:
a one-third mile 1/3英里 a three-quarter majority 3/4的多数
年代表示法
年代用年份的阿拉伯数字加-’s或-s表示。如:
十七世纪二十年代写作1620’s或1620s。
初期、中期、末期分别用early,mid-和late表示。如:
三十年代初期写作the early thirties。
三十年代中期写作the mid-thirties。
三十年代末期写作the late thirties。
二十世纪五十年代初期写作the early 1950’s;
中期写作the mid-1950’s;
末期写作the late 1950’s。[1]
时刻表示法
(1) 二十四小时计时法
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