The actress avoids ostentation. She owns a small house and drives an inexpensive car.那位女演员不愿意炫耀。她住的是小房子，开的是经济型轿车。People should be encouraged to buy smaller, more economical cars with fewer toxic emissions.应该鼓励人们购买有毒烟气排放量小的经济型车辆。Budget travellers want to avoid paying over the odds for hotels.经济型游客想避免在旅馆上多花钱。