年级的英语grade。
例句：
1、萨姆读二年级。
Sam is in second grade.
2、怀特先生在佐治亚州南部教一年级。
Mr White teaches first grade in south Georgia.
3、她上六年级的时候是个多么可爱温顺的小女孩啊。
What a sweet, obedient little girl she was in the sixth grade.
4、马克在7年级的时候参加了3个运动项目，但是其中两项他都表现得实力不济。
In seventh grade Mark went out for three sports but was rather poor in two of them.
5、那个小男孩因在数学方面极具天赋而从二年级跳到了四年级。
The boy skipped the third grade because of his great aptitude in mathematics.
shuixinggege
