expensive

Maintaining a vintage luxury car can be extremely expensive over time.

(Chinese) 随着时间的推移，维护一辆老式豪华轿车的费用可能会非常昂贵。

The diamond necklace was so expensive that the store kept it in a high-security safe.

(Chinese) 那条钻石项链非常昂贵，商店把它锁在高度安全的保险柜里。