Gradel格拉德尔graden.等级；年级；成绩；斜坡v.分级；评分；渐次变化graded sediment级粒沉积grade of gypsum石膏品位graded sediments分级沉积graded topocline梯级地理倾差grade-grubbingn.努力学习；希望能够得到比较高的分数；adjgrade correction坡度校正graded rhythmite递变韵律层,粒级韵律层grade malignancy恶性程度graded shoreline均夷滨线grade attachment隶属度

1. The first grade was allowed to leave school early.
   一年级学生被允许提早离校。
2. All my friends are in Class Four, Grade One.
   我所有的朋友在一年级四班。