Scores are translated into three levels: advanced, proficient and basic. Proficient represents solid academic performance, while basic shows partial mastery of skills.

分数被划分为三个档次：优，良和及格。良代表扎实的学术能力，而及格表示掌握部分知识。

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The study rated understanding at three levels: basic, proficient and advanced.

研究从三个层次理评估理解能力，基本，专业，高级。

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Successful employees need to be proficient in four skill areas: basic skills, thinking skills, people skills and personal qualities.

称职的员工必须精通四个技能领域：基本技能、思考技能、人际互动技能和个人特质。

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The average scores were categorized at each grade level into four groups: below basic, basic, proficient, and advanced.

CNN: Report card shows U.S. students need to improve math skills