#3 COVID: One year on

                                

1. pandemic - a disease that affects people over a very large area or the whole world 

The government should control Covid-19 before it becomes a pandemic.

2. outbreak - a time when something suddenly begins

The outbreak of Covid-19 put the whole nation on alert.

3. take stock - to think carefully about the things that have happened in a situation in order to decide what to do next

It was time to stand back and take stock of his career.

4. take hold - become stronger and is difficult to stop

The economic recovery is just beginning to take hold now.

5. wimpy - feeble or not very strong

She was too wimpy to say what she really thought.

6. sheer - great or significant，(size or weight)very large

The sheer size of the engine makes it difficult to transport.

7. vaccine - a substance which contains a weak form of the bacteria or virus

Doctors worried that there would not be enough vaccine for everyone who needed it.

8. pneumonia - a serious illness that affects your lungs and makes it difficult for you to breathe

People who are bedridden can easily get pneumonia.

9. kick in - starts to happen

Hence the special holiday offers about to kick in.

10. genome - the full amount of genetic information of something

The algorithm initially creates a population of m individuals by assigning random values to the elements of the genomes.