In order to solve this problem, first, we need to divide the whole into several parts.

There is a state-of-the-art electron microscope in my laboratory.

By regularly checking the key performance indicators, you can understand the performance of the company and devise improvement measures.

Understanding the concept of 'Ha-line conversion sounds' is important in learning Japanese.

He goes fishing in the sea every day.

In linear algebra, the upper triangular matrix plays a very important role.

His blood congealed with fear.

I used an optical microscope for an experiment at school.

We will go to the flea market on Sunday.

We went to the free market on Sunday.