高考 (gāo kǎo) means “college entrance exam (especially as abbr. for 普通高等学校招生全国统一考试); (Tw) entrance exam for senior government service posts (abbr. for 公务人员高等考试)”. It is an HSK 6 Chinese word in the HSK 3.0 vocabulary.
他正在准备高考。
Tā zhèngzài zhǔnbèi gāokǎo.
He is preparing for the college entrance exam.
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