A large group of people is called this.

一大群人被称为这个。

They sent out a large group of rescue workers.

他们派出了一大队的救援人员。

The event attracted a large group of tourists.

这次活动吸引了大队的游客。

A large group of soldiers is undergoing training.

一大队的士兵正在进行训练。

A large group of students gathered on the playground.

大队的学生在操场上集合。

We saw a large group of birds flying across the sky.

我们看到一大队的鸟飞过天空。

I was afraid to speak in front of a large group of people.

我不敢在一大群人面前讲话。

Some of us take social risks, such as speaking in front of a large group of people.

我们中的一些人承担社会风险，比如在一大群人面前发言。

For a large group of companies under a wholly owned subsidiary.

为某大型集团公司属下的一个全资子公司。

Yeast is the general name given to a large group of micro-organisms.

酵母，是一大群微生物的通称。