The obligatory school system usually includes the primary education and secondary education I (lower secondary).
义务学校体系包括初级教育和中级教育i(较低的中级教育)。
Missing school in general means a lower overall score.
不上学一般就意味着智商得分较低。
At present, however, the lower effectiveness of school moral education has become an indisputable fact.
但是目前，学校道德教育实效低下已成为不争的事实。
In school, it can lead to missing deadlines and lower marks, or worse.
在学校里，拖延症会导致错过各种最后期限，成绩低下，甚至更糟的情况。
Lower grades are seven or eight-year-old children, first entered primary school, almost nothing.
低年级都是七八岁的儿童，刚进小学，差不多什么都不会。
By the time, many advanced women flooded to lower primary school and higher primary school.
那时候的前进妇女正是纷纷地大批涌进初小，高小。
Most start work after graduating from middle school at age of 18 or lower.
他们从中学毕业时大多只有18岁甚至不到18岁，然后就参加工作。
Most start work after graduating from middle school at age of 18 or lower.
他们从中学毕业时大多只有18岁甚至不到18岁，然后就参加工作。
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