List: HSK 5

1. primitive, original, primary
2. raw, unprocessed

ancient, old, age-old

1. form, shape, appearance
2. morphology

1. harm, hurt, damage
2. to harm, injure
3. afraid, scared

1. difficult, hard to
2. not easy to

1. careful, attentive, thorough
2. meticulous, painstaking

1. genius
2. natural talent, innate ability

1. polite, courteous, modest
2. to be polite, show courtesy

1. idle, free, unoccupied
2. leisure, spare time

1. air, sky
2. airborne, aerial