Ontheonehand they'd love to have kids, but onthe other, they don't want to give up their freedom.
一方面,他们想要孩子,但另一方面,他们又不想放弃自由自在的生活。
《牛津词典》
2
Ontheonehand, if the body doesn't have enough cholesterol, we would not be able to survive. On the other hand, if the body has too much cholesterol, the excess begins to line the arteries.