地道英语对话：Prohibited Parking(2)

A: What are the rules about where I should park?
B: Your assigned space is in the back where I marked it on the map.
A: Can I park anywhere else in the parking lot?
B: There are a few spots back there for visitors. They are unassigned.
A: Where can my guests park if all of those spots are gone?
B: You can park on the street, but you can get ticketed for failing to follow the rules.
A: How will I know what the rules are?
B: Just pay attention to street cleaning days and limits on the hours you can park out there.
A: Are parking citations¹ costly²?
B: Yes, parking tickets can be extremely expensive.
 

1 citations   

n.引用( citation的名词复数 )；引证；引文；表扬

参考例句：

• The apt citations and poetic gems have adorned his speeches. 贴切的引语和珠玑般的诗句为他的演说词增添文采。 来自《现代汉英综合大词典》
• Some dictionary writers use citations to show what words mean. 有些辞典的编纂者用引文作例证以解释词义。 来自辞典例句

2 costly   

adj.昂贵的，价值高的，豪华的

参考例句：

• It must be very costly to keep up a house like this.维修这么一幢房子一定很昂贵。
• This dictionary is very useful,only it is a bit costly.这本词典很有用，左不过贵了些。