leave school

finish one's education

畢業(yè)；離校，輟學(xué)

he left school at 16.

他16歲時畢業(yè)離校。

of (或 from) the old school

he left school at 16.

他16歲時畢業(yè)離校。

the school of hard knocks

he left school at 16.

他16歲時畢業(yè)離校。

school of thought

a particular way of thinking, especially one not followed by the speaker

（尤指說話人不贊同的）思潮

there is a school of thought that says 1960s office blocks should be refurbished as residential accommodation.

有一種思潮認(rèn)為60年代的辦公街區(qū)應(yīng)重新裝修用作住宅。