Hi, everyone!

嗨，大家好[Gy+Q|#&+b+h。

I hope you like prepositions because I am going to talk about them again today.

希望你喜欢介词，因为今天我又要介绍介词啦WD!6]_Z%vza。

The question today comes from our reader Francesca in Rome, Italy. Here it is:

今天的问题来自意大利罗马的读者Francesca，问题是这样的：

Hello, thank you VOA. I have a problem using over and above. You will certainly help me.

你好，感谢美国之音A8uXFJN2;HS-qE(By6。我在over和above的使用上有疑问，你一定能帮我aIrgzk|jQwuu&BZJ。

Ciao, Francesca. I am happy to help!

你好，（Ciao，意大利语），Francescaod.mURg1b6CKa3USu]9P。我很乐于提供帮助slkWQ7evQcU#b;D@eD-。

The words over and above can act as prepositions or adverbs, depending on how they are used.

over和above这两个单词都能当介词或副词，具体取决于它们的应用|Et,f3t8a,=C。

For today's program, I will focus on prepositions. Prepositions are words that show direction, position or time.

在今天的节目中，我会着重讲介词ff[mum_G|VR-。介词是指表明方向、位置或时间的单词A9SurP)UN6W;。

Over and above both express that something is in a higher position than something else. And, sometimes, you can use either word.

这两个单词都表示某个物体的位置比其它物体更高，有时候这两个单词随便用*|9pgoF8K)t。

You can, for instance, say:

例如你可以说：

"The building is over a parking lot" or "The building is above a parking lot".

大楼在停车场的上方vqe4ktDs2(UQYuk。

They have the same meaning.

上面两句的意思完全相同8i|-e6kvtZC-O&w1cL。

But there are times when one word is more suitable than the other.

但是有时候用其中一个比另一个更合适x-G~|vAN0^。

For example, the word over suggests movement. Above does not.

例如，over这个单词表示动作，而above没有这层意思++7[*l|9Qp*0jC=QC9h。

When the upper object moves across the lower object, use over, as in these examples:

当上方物体从下方物体上面移动过去时，要使用over，如下所示：

A plane just flew over city hall.

一架飞机刚刚飞过市政大厅Fc3l9xWVHHJAAPr。

We walked over the bridge.

我们从桥上走过]nwINkR*WMDeU。

In addition, over suggests contact between two objects. Above does not.

此外，over表示两个物体之间有接触，above没有这层意思Ug*WC|aeRRWg9d&AC。

Use over when the higher object covers or is touching the lower object, as in these:

当上方物体覆盖或接触到下方物体时，请使用over，如下所示：

Did you wear a raincoat over your clothes?

你穿雨衣了吗？

Please put foil over the remaining food.

请用锡箔纸把剩下的食物盖起来X)mq0+d&FR1gtVwhy(。

Above is more common when there is no contact between the two objects, as in this:

Above更多用于两个没有接触的物体I4%gZ2p+(Zv。如下所示：

Many bird species fly above the clouds.

很多鸟类在云朵之上飞行Ck(#u@|goOhE;_]e。

We also use over and above with measurements.

我们还把over和above用作度量单位~r)%c6JeuD30(。

Use over for such measures as height, age, speed and time, as in these:

在高度、年龄、和时间等度量上用over，如下所示：

We have been waiting over an hour for a table.

我们已经等位一个多小时了M0EvDmsTK|[6+#;9。

The game is for children over 10 years of age.

该游戏适用于十岁以上儿童XA,HM58!zK#。

Above is generally used in measures of temperature, as in this:

Above一般用于温度等量度，如下所示：

It went above 90 degrees again yesterday.

昨天温度又超过90华氏度了zzbI+H2f)V~^L&Zv。

And that's Ask a Teacher.

以上就是本期名师答疑的全部内容*EHnD5[IcS;XCGd]SV。

I'm Alice Bryant.

我是爱丽丝·布莱恩特fX15y![1NPvwC[+~u,。