听力文本如下：

Let's take a closer look at the vocabulary used in the informal meeting.

Shawn begins by saying, “As I said a moment ago.”

That phrase is similar to the phrase “as I mentioned,” which was used in the formal meeting.

“As I said a moment ago” is a phrase used when repeating something that one said a few minutes ago, usually as a reminder or to stress its importance.

As I said a moment ago, we're going to take a close look at the vocabulary used in the meeting.

Shawn says, “As I said a moment ago, our market share has taken a nosedive in the last year.”

A “nosedive” (nosedive) is a quick or rapid decrease, fall, or decline, where something goes down a lot and very quickly.

When the population of frogs takes a nosedive, biologists get very worried, because they think, maybe, there's something wrong with the environment where the frogs are living.

So, anything that has a number can take a nosedive.

Vision Corporation is worried about the nosedive, or the rapid decrease, in its market share.

As in the formal meeting, Shawn says that there are three reasons for the falling market share, or the decreasing market share.

First, there are more competitors than there were before.

Second, the product isn't meeting the needs of the market.

“To meet the needs of someone” means to give or provide what someone is looking for, or to give people what they require.

We hope that we're meeting your needs in improving your English comprehension.

Shawn wants the product to meet the needs of the consumers, or customers, in the market.

Shawn then says that the third reason for falling market share is that the advertising is speaking to the wrong customers.