vocab4

1. preferential

If you have fully vaccinated, you will have preferential to others won't.

2. ellipse

Our brain has two ellipse parts.

3. salient

The salient fact of world war is the rise of a country, if you don't have nuclear power you will be the loser.

4. rudimentary

Rudimentary means the fundamental thing.

5. irritate

Don't talk to someone who's just waking up, you may irritate him.