The first twofigures after the decimal point indicate tenths and hundredthsrespectively.
小数点後的头两位数分别表示十分位和百分位.
Britain converted to a decimal currency system in 1971.
英国於1971年改行十进制货币体系.
The recurring decimal 3.999... is also described as 3.9 recurring.
循环小数`3.999...'亦作`3.9循环'.