短语讲解：
1. Doctor Lv Ning who participated in the evaluation says they used two indices, namely the natural environment and leisure facilities.
participate in参加
例句：How many people participated in the opening ceremony?
多少人参加了开业典礼?
2. For example, we take into account such indices as the number of libraries, cinemas, parks, and public spaces.
take into account考虑到;体谅
例句：They had to take the baby into account when they wanted to go out.
每当要外出时,他们总得考虑如何将婴孩安顿好。
3. Yes, Beijing has lots of cinemas, theaters and libraries, but the number per capita is very small due to the large population.
due to由于，因为
例句：Her absence is due to illness.
她因病缺席。
4. The researchers have also discovered that big cities dwellers are not in the mood to engage in leisure because they are exhausted and under great pressures, while in middle and small cities, people don't have enough facilities for leisure activities.
engage in参加; 从事; 忙于
例句：The old lady engaged herself in making clothes for her children.
这位老太太忙着为孩子们做衣服。
5. We reflect on ourselves in our leisure times, therefore we can work better.
reflect on仔细想; 回忆
例句：I often reflect on my schooldays.
我经常回忆起我上学的日子。
6. The researchers believe that people's happiness greatly depends on a city's leisure environment.
depend on取决于; 随…而定
例句：Whether the game will be played depends on the weather.
比赛是否举行要看天气而定。
