The gravity model explicitly relates flows between zones to interzonal impedance to travel.
重力模型明确的通过地区间的阻抗来将分布量和小区联系起来。
；步；进；[口]交往；经过；游历；漫游
时间较长、距离较远的单程陆上
，也水上或空中的。最后反回出发地，途中有停留游览点，距离可长可短，目的各异的周游或巡。的为而不某次具体的，多到远方作长期，不强调直接目的地，单、复数均可用。为公务或游玩作的较短暂的。在水上，尤海上，也可空中。不超过一天的短时期娱乐性游玩，也可乘火车或轮船往返特定景点的远足游。有特定目的远征或探险。乘船的游览并在多处停靠。的;;;;者;经验的;计划，程表;推销；四出兜销社；游服务程时间游；空中社；代理人，代办人走，步，宇宙航游保险；保险，时空之游需求；运需求费用The gravity model explicitly relates flows between zones to interzonal impedance to travel.
重力模型明确的通过地区间的阻抗来将分布量和小区联系起来。
It is expensive to travel by plane.
坐飞机很费钱。
There may be travel expense, as well.
可能还有途费用。
He reacted ecstatically to my plan to travel to Africa.
他对我去非洲的计划表现出极大的兴趣。
The prince travelled incognito to avoid crowds and ceremonies.
王子微服以避开人群及避免欢迎仪式。
She resented having the child foisted on her while the parents went travelling abroad.
她对孩子的父母出国卻硬要她来照看孩子这事很反感。
Early experiments with military rockets prepared the ground for space travel.
早期军用火箭的试验为太空飞奠定了基础。
This preferential ticket entitles you to travel first class.
"凭这张优惠票,你可以坐头等舱。"
They travel to the nearest town on Saturdays for shopping or on Sundays for church.
他们在星期六到最近的镇上去购物,星期日去教堂。
One of his quirks is that he refuses to travel by train.
他的怪癖之一是不愿乘火车。
The cost of the ticket is proportionate to the distance you travel.
票价和的距离是成比例的。
We're planning to travel round the globe.
我们正计划做一次环球。
He received reimbursement for his travel expenses.
由于出差的花费，他可以得到公司的补偿。
We’ll reimburse you for your travelling expenses.
我们将付还你费。
He recouped his travelling expenses from his employers.
他向老板报销了他的费。
Many of the city’s populace travel to work by subway or bus.
许多城市的平民都是坐地铁或公共汽车上下班。
They advised the government not to issue him a passport to travel abroad.
他们奉劝政府不要给他发护照出国游。
Citizens of the EU can travel without restriction within the EU.
欧盟的公民在欧盟境内可以不受限制地出入各国。
New high-speed trains are pointing the way to a new age of European travel.
新的高速火车引领了欧洲的新时代。
It once seemed inconceivable to everyone that men should travel to the moon.
"人们一度认为,人飞上月球似乎是不可想象的。"
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