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- centering between margins 两个边限之间对中
- The medical records of children who presented to the pediatric emergency department of a single tertiary referral center between December 2001 and May 2006 were reviewed. 我们在此报告一家医学中心从2001年12月至2006年5月经回溯性病历记载，共有87位病童因怀疑误食异物而接受内视镜检查。
- That is what economists mean when they talk about the difference between marginal private cost and net social cost. 这就是经济学家们说的私人边际成本与社会净成本之间的差别。
- Each faces a tradeoff between marginal investments in human capital and marginal investments in financial instruments, such as a savings account at a local bank. 他们都面临着一种权衡：人力资本的边际投资和金融工具的边际投资（比如在本地银行的一笔存款）。
- Expenditure structure of state-owned capital gains hinges upon the comparison between marginal contributions of investment expenditure and public welfare expenditure to national welfare. 摘要国有资本收益支出结构取决于经营投资性支出与公共福利性支出对全民福利之边际贡献比较。
- Buses go to and fro between the center of the city and the city limits. 公共汽车往返行驶于市中心和城市边缘之间。
- He moved the table over to the center of the room. 他把桌子移到房间中心。
- The land is destined for a new shopping center. 这块地已被划作为营建一个新购物中心之用。
- His activities in London center around this spot. 他在伦敦的活动以这个地点为中心。
- The strikers paraded through the city center. 罢工队伍游行穿过市中心。
- There is a shuttle service between the city center and the air station. 在市中心和飞机场之间有往返的穿梭运行班车。
- A system of roads radiates from the town center. 一个道路网从镇中心向四面八方伸展出去。
- The new hospital will be sited at the city center. 新医院将座落在市中心。
- New York is a great financial center. 纽约是一个重要的金融中心。
- The center of the sun is exceedingly hot. 太阳的中心极其热。
- Our city is the industry center of the country. 我们城市是全国的工业中心。
- They made a detour to avoid the town center. 他们绕道而行,避开市中心。
- A circle without a center is inconceivable. 一个没有圆心的圆是无法想像的。
- He played the ball between left and center. 他巧妙地把球打到左边兴中央之间。
- We decided to skirt round the town center. 我们决心绕过市中心。
