2. Air whether in the gaseous or liquid state is a fluid. 空气，无论是气态的或是液态的，都是一种流体。
3. This vast park is the most monumental reason to visit the state of Colorado. 来科罗拉多州最重要的原因就是要参观这座广阔的公园。
1. the group of people comprising the government of a sovereign state
2. the territory occupied by one of the constituent administrative districts of a nation
3. a politically organized body of people under a single government
4. the way something is with respect to its main attributes
5. the federal department in the United States that sets and maintains foreign policies
6. the territory occupied by a nation
7. a state of depression or agitation
8. (chemistry) the three traditional states of matter are solids (fixed shape and volume) and liquids ( v.
1. express in words
2. put before
3. indicate through a symbol, formula, etc.