second,第二的，-ary,形容词后缀。

secondary (adj.)

late 14c., from Latin secundarius "pertaining to the second class, inferior," from secundus (see second (adj.)). Of colors, from 1831; of education, from 1809. Of sex characteristics from 1780. Opposed to primary or principal. Related: Secondarily.

1. More than five-thousand secondary school students have been expelled for cheating.

5,000多名中学生因为作弊被开除。

来自柯林斯例句

2. He had kidney cancer, with secondary tumours in the brain and lungs.

他患有肾癌，还有脑部和肺部的继发性肿瘤。

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3. One in four pupils leaving secondary school can't read or write properly.

中学毕业生中有1/4的人读写有问题。

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4. The secondary current sets up a magnetic field inside the tube.

二次电流在管子内部会产生磁场。

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5. Entrance to universities and senior secondary schools was restricted.

进入大学或高中的资格受到限制。

来自柯林斯例句