To straighten up , imagine that your head is touching the sky .
直坐，想像着头顶触摸着天空。
The operation to straighten out and puff up crooked and collapsed veins , called venoplasty , is almost identical to cardiac angioplasty-a common treatment for diseased coronary arteries .
拉直、弯曲、摧毁静脉的手术被称为venoplasty，这与心绞痛等心脏病的治疗方法是几乎一致的。
Take a paper-clip and straighten it out .
拿一个回形针并把它弄直。
Scale up the idea , straighten out the carousel and you have a production line with multiple printing heads .
把这个创意放大，清理掉上面所说的陶瓷层，你将拥有多重印刷喷头生产线。
America has a chance to straighten out not just its finances , but also the highly polarised politics that underpin them .
