A first grader can write the person's name. By fourth grade children should be able to write the time of the call and the reason for the call as well as the name of the caller.

还不太会写的孩子可以只写下名字，大一些的孩子应能写下接电话的时间，打电话的原因和打电话人的姓名。

youdao

Here I've used the new keyword enum, given the enum a name, and specified the allowed values. Grade then becomes an enumerated type, which you can use in a manner shown in Listing 3.

在这里，我使用了新的关键字enum，为enum提供了一个名称，并指定了允许的值。

youdao

Sam was the one who hit me with a basketball at recess in second grade. And Sam is the one who still calls me the annoying name of Arizoni Macarconi!

透漏一点背景，就是那个一年级向我扔毛毛虫，二年级在课间用篮球打我的萨姆，萨姆还是那个叫我讨厌名字Arizoni Macarconi的家伙

youdao

My name is Maria D'Itria, and I teach 5th grade class at the Harvard Kent School in Boston.

我叫玛利亚。狄翠娅,我在波士顿的哈佛肯特学校教授五年级课程。

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