s. having a high price
a. 昂贵的, 奢华的, 费用大的
1. The new smartphone is too costly for my budget.
这款新智能手机对我的预算来说太贵了。
2. Traveling to Europe can be very costly during the summer.
夏天去欧洲旅行可能非常花费。
3. She decided not to buy the costly dress for the party.
她决定不为聚会买那件昂贵的裙子。