47 / 50
45
researchers:
Scientists who study new things and make new discoveries.
ulcer:
A sore inside your stomach.
withdrawal symptoms:
The negative effects you feel when you stop taking a drug that
your body is dependent on.
|
|
47 / 50
45
researchers:
Scientists who study new things and make new discoveries.
ulcer:
A sore inside your stomach.
withdrawal symptoms:
The negative effects you feel when you stop taking a drug that
your body is dependent on.