For example, the pain killer aspirin is the acetyl ester of salicylic acid, originally isolated from the bark of willow trees, and a wide range of opiate painkillers like heroin are obtained by chemical modification of morphine obtained from the opium poppy.
Almital, tablalt ta tanaqqit tazzurt t aqqal acetyl ester n acid saticlic daɣ alasal azun id tafrinka n ihishkan win willow trees, d ichikil n tiblalen ti n aqqinen tazzurt chund heroin ta tajraw nat s amutti n morphine ta tajraw at daɣ opium poppy