英语翻译School life expectancy,approximation method.The sum of the age-specific enrolment rates for the levels specified.To compensate for the lack of reliable data by age for tertiary education,the gross enrolment ratio for tertiary education is

英语翻译Daniel is——his school life ——. 作文 MY School Life my ideal school life My Middle School Life My Colorful School Life school life in usa our school life Though school life 英语翻译Being safe at school and in your everyday life needs knowledge.Being safe at school and in your everyday life needs knowledge. 英语作文My school life! 英语作文my school life 作文：our colorful school life My School Life 英语作文 we e_____ our school life better school life的作文 last primary school life作文 school life六年级英语作文 My school life is interesting.