Science teacher's role should change elastically and multiply depending on the instruction context.

Astronomers have discovered several galaxies in the Antlia constellation.‌

天文学家在唧筒座星座中发现了几个星系‌。

The constellation Antlia is often difficult to see with the naked eye.‌

这个星座通常很难用肉眼看到‌。

Antlia is a faint constellation in the southern hemisphere near Hydra and Vela.‌

Antlia是南半球的一个暗星座，靠近Hydra和Vela‌12。

He took a quick look at his notes.

他很快地检查了一遍自己的笔记.

She had a quick look in the mirror.

她匆匆照了下镜子.

Let take a quick look at the first 8 challenges.

让我们快点来看看前8个挑战项目.

Short quick look, esp a secret or sly one.

一瞥(尤指秘密的或诡秘的);偷看;窥视.

Let us take a quick look at some of the possibilities.

让我们来看看其中一些可能的应用.

At this site you can have a quick look at weather information.

你可以在该网站浏览天气情况.

Some take a quick look before Nung-fu started the tour.

有些校友趁农夫带队参观前,先各方走走看看.

Take a quick look from cover to identify the important chapters.

快速寻找封面确定的重要章节.

A quick look at Monday's British newspapers shows that there's plenty of interest in foreign news.

大致浏览一下周一的英国报纸就会发现，国外新闻还真不少。

Now for a quick look at some of the other stories in the news.

下面我们快速浏览一下其他新闻报道。

A flight of steps leads up to it through a deep and gloomy but magnificent arch.

堂前有一道阶梯,进门前先得穿过一座幽深而宏伟的拱门.

His room is approached by a flight of steps.

有一段台阶通向他的房间.

A flight of steps led up to the house.

一段台阶向上通到了屋前.

Nick followed the woman up a flight of stairs back to the end of a corridor.

尼克随她上了一层楼梯,又往后走到走廓尽头.

A flight of stairs, cut in the rock, led up to the lighthouse.

岩石上凿出来的节节台阶一直通到灯塔.

She died three years ago in a tragic fall down a flight of stairs.

她死于三年前的一场楼梯坍塌的惨剧中.

Each flight of stairs has 20 steps.

每段阶梯有二十级.