Yaseen Perez Gomez guides Arian Iznaga of Cuba around the track in the men's 200m, T11 race. Photo: Michael Steele/Getty Images
Blind and partially sighted runners can compete with a guide. Usually tethered to the athlete by a rope, the guide talks throughout the race, explaining to the athlete where they are on the track, flagging up bends and making a call on whether or not the athlete should accelerate, hold the pace or relax. The golden rule of guide running is not to cross the line before the athlete, a crime punishable by disqualification.失明和有視覺障礙的田徑運動員參賽時可以依靠一名嚮導。通常與運動員以一根繩子相連，嚮導在旁不停的做解釋，告訴運動員在跑道上的位置，前方是否有彎度，是否需要加速或保持現有速度或放鬆。最關鍵的一點是嚮導不能在運動員之前跨越終點線，否則馬上取消比賽資格。
短語 to give someone a hand 意思就是說給誰幫忙， 助他人一臂之力。
I」m really finding my homework difficult. Can you give me a hand?
Look at all the washing up! I really need someone to give me a hand!
Louise is so kind – she's always ready to give you a hand with anything.
另一個短語 go hand in hand 的意思是兩件事情是密切相關的，聯在一起的。
Maths and science go hand in hand – they're related subjects.
When watching a film, the images and sound go hand in hand.