first-grade

基本解释

• adj. 一级；甲级

同根派生

• first-grade相关词

英汉例句

双语例句

• Such protection zones shall be divided into first-grade protection zones and protection zones of other grades.
  生活饮用水地表水源保护区分为一级保护区和其他等级保护区。
• Certain water areas and land-based areas beyond the first-grade protection zones may be delineated as protection zones of other grades.
  在生活饮用水地表水源一级保护区外，可以划定一定的水域和陆域为其他等级保护区。
• A first-grade teacher was having trouble with one of her students.
  一年级女教师跟她的一个学生较上了劲。

权威例句

• Now, seven months later, Taylor is beginning to read and does first-grade math.
  NPR: Students Blossom in the Desert

• first-grade更多例句

词组短语

短语

• first -grade structure 一级建筑物
• First -Grade Lawyer 一级律师

• first-grade更多词组

专业释义

经济学

• 甲级