List: HSK 4

1. heating, central heating
2. heater, radiator

bridegroom, groom

bride

1. on time, punctual, prompt
2. to be on time, to be punctual

1. challenge, test, difficult task
2. to challenge, to test, to take on

1. answer, solution, reply
2. key, answer key (to questions or problems)

1. to maintain, to protect, to safeguard
2. maintenance, protection, upkeep

1. restriction, limitation, constraint
2. to restrict, to limit, to constrain

1. typical, characteristic, representative
2. classic example, model, archetype

1. awake, conscious, alert
2. sober, not intoxicated
3. clear-headed, lucid
4. to wake up, to become sober