They presented a series of images showing human faces,他们放映了一系列人脸的图片

present:v.

1.present的基本意思是“出现”,指人时多指“到场”“出席”,指物或事物时则指“显示”。多接反身代词作宾语。

2.present也可作“介绍”“引见”解,多用于涉及的人地位高低不等的场合。

3.present可作“赠送,给予”解,此时多接双宾语,其间接宾语可以转化为介词to的宾语。

常用短语:

present to (v.+prep.) 向…介绍…

Allow me to present my former teacher to you.

请允许我向你们介绍我以前的老师。

He presented the guests to each other.

他介绍客人们互相认识。

a series of:一系列, 一连串

The student always asks his teacher a series of questions.

这个学生总是问他老师一连串的问题。

The business cycle is a series of peaks and troughs.

商业周期就是淡旺期交替。

But when it came to human faces,they made a remarkable discovery.而当他们看到人脸时他们的表现引起了我们的注意

make a discovery:发现

It is very exciting to make a new discovery.

有了新发现，这是非常令人激动的。