第一类

class up───向上分类

glass in───用玻璃围住

class───n.阶级；班级；种类；班；等级；vt.分类；把……分等级；把……归入某等级，把……看作（或分类、归类）；把……编入某一班级；adj.极好的；很好的，优秀的，出色的；vi.属于……类（或等级），被列为某类（或某级）；n.（Class）（英、德）克拉斯（人名）

classed───n.阶级；班级；种类；班；等级；vt.分类；把……分等级；把……归入某等级，把……看作（或分类、归类）；把……编入某一班级；adj.极好的；很好的，优秀的，出色的；vi.属于……类（或等级），被列为某类（或某级）；n.（Class）（英、德）克拉斯（人名）

classer───n.分选羊毛等级的工人

classes───n.级别，阶级（class复数形式）

classic───adj.经典的；古典的，传统的；最优秀的；n.名著；经典著作；大艺术家

Today, in the math class, I had the urge to fart.───今天的数学课上，我有想放屁的冲动。

After class I followed her out, intending to introduce myself.───下课以后，我跟着她走出了教室，我打算向她做个自我介绍。

They always find a new angle, a different part to be keen on especially this class. I think they are really keen on it.───他们总能找一个全新的角度，热衷于这个班级的一个不同的角度。我认为他们对它很有热情。

But to my pleasure I found she was a woman from a class I'd taught a few weeks before.───不过让我高兴的是，原来她是我几星期前教过的一个班上的女生。

When you think that something your professor said is clearly wrong, after class I want you to go argue the point with a classmate.───当你认为你的教授所说的话显然错误时，课后我想让你与你的同学继续讨论。

So today when Alen told me that he was the best in his maths re enforcement class, I poured scorn on his words.───所以今天李承伟说自己在数学补习班多么多么厉害的时候，我抱以不屑的态度。

In my class I dare not to say that I was the best, but I work hard and strive to do the best.───在我的班里我不敢说我是最优秀的，但我很努力，努力做到最好。

It is the only spec of any class I can think of that actually penalizes you for not tunnel visioning.───它是唯一规格的任何类别我能想到的，实际上惩罚你不隧道远景。

When I first came to her in this class, I, and Laura is a pair of dead enemy, but now I found that I began to love her!───当我第一次来到这一类的她，我和劳拉是一对死的敌人，但现在我发现我开始喜欢她！

Each day after my morning class I return to the meadow, following the path toward the heights.

As well as having it in the luxury class, I now also include it in the practical, hard-wearing, well worth-the-effort class!

The best pupil in the class, i.e. Peter, won the prize.

In Class I compounds, electron transfer between the centers is slow, and the sites behave as if they were effectively independent.

At the beginning of each class, I count off the students.

Class I occlusion with coordinated dental midline was obtained.

The first week of class, I felt on the verge of tears.

At the end of class, I fled before he could turn around and give it back to me.

Stable class I molecules were recovered with the monoclonal antibody W6/32.