the world's (superlative adjective) (something)

Use phrases "the world's best ___" or "the world's ___est ___" to talk about something that's #1 for some quality. For example, a restaurant might boast:

We make the world's best burgers!

This means that their hamburgers are better than any other hamburgers anywhere.

a computer chip

Inside a computer, phone, or other electronic device, you'll find "computer chips". These are the pieces that make a computer work. They're usually flat and have lots of connections printed onto them.

a (something) manufacturer

A company that makes things in a factory is a "manufacturer". Some common types of manufacturers include:

• car manufacturers
• clothing manufacturers
• electronics manufacturers

a sharp decline

You use the phrase "a sharp decline" when reporting numbers like sales numbers, statistics, etc. It means that the numbers decreased suddenly.

For example, if a company has been making ten million dollars a month, then suddenly makes only seven hundred thousand dollars one month, that is a "sharp decline" in the company's earnings.

Use this phrase in a sentence like this:

There's been a sharp decline in the rate of violent crime since she took office as mayor.

We've seen a sharp decline in DVD sales this year.

quarterly profits

A "quarter" is one fourth of the year. Companies often measure their performance by quarters.

A company's "quarterly profits" are the amount of money that the company makes in one quarter. Specifically, the "profits" are the money that's left after the company pays for expenses like equipment, employee salaries, and so on.

Our quarterly profits are up 10% over last year.

(something) continues to fall

To talk about a number that keeps going down, you can say that it's "falling":

Housing prices in the city are actually falling.

The phrase "___ continues to fall" is used by news reporters. It sounds a little too formal to use in most other situations.