1、因为没有农业我们无法养活我们自己，所以农业对人类很重要。
Without agriculture, we cannot survive, therefore the agriculture is very important to the humankind.
2、因为铁轨交通比公路交通更安全，所以很少的人在铁轨交通中受伤或死亡
The railroad transportation is safer than highway, so there are less injuries or death caused by the railroad traffics.
3、虽然世界上所有的石油不久将用完，但是我们并没有尽全力去寻找新的能源
Although all the petroleum will be exhausted in the world soon, but we have not tried our best to search for new energy resources.
4、政府不可能再重新在原址上建造整个城市因为它处于地震带。
The government cannot rebuild the whole city on the same site, because it is located on the earthquake belt.
5、虽然核能能够发电，但是很多人反对使用核能。
Although we can generate the electricity from the nuclear energy, but many people are against using the nuclear energy.
6、虽然旅程历经艰辛，但是大部分鸟都安全到达
Although the journey was hard and long, but the majority of birds safely reached the destination.
7、尽管史密斯接受布朗的理论，但是他仍对其中的一些结论表示不赞成
Although Smith has accepted the theory by Brown, but he still disagrees some of the conclusions in the theory.
8、虽然威廉姆斯下班了，但是某人仍看见他在餐馆里花了很长时间和同事讨论工作。
Although Mr. Williams had left his office after office hours, but somebody still saw him spending quite a long time talking with his co-workers in job-ralated topics in the restaurant afterward.