His formal schooling continued erratically until he reached the age of eleven.

他的正式学校教育断断续续地持续到了他11岁时。

《柯林斯英汉双解大词典》

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The United States differs from many other countries in that compulsory schooling ends at age 16, thus making it possible for many students to leave school before completing basic education as defined in United States.

UNESCO: II Part Analytic Section

Only 22% of girls above the age of ten complete primary schooling, compared with 47% of boys.

ECONOMIST: Pakistan

The latest available information indicates that close to 22 percent of students in this age bracket do not complete primary schooling on time.

UNESCO: MEDIA SERVICES