It sped downhill at the end of the race and its driver had a lot of trouble trying to stop it求这句话中trouble trying的详解,句中的意思是费了很大的劲,为什么用这两个词来表示费劲?

It sped downhill at the end of the race and its driver had a lot of trouble trying to stop it求这句话中trouble trying的详解,句中的意思是费了很大的劲,为什么用这两个词来表示费劲? it sped downhill ai the end of the race and its driver had a lot of trouble trying to stop it换成the可以吗had这里干什么的 trying It's easier to go downhill than to climb uphill Prod.-Sped. sped是什么意思? sped down 英语翻译It is easier to go downhill than to climb uphill.So it is easier to fall into bad habits than into good habits.Bad habits do not come suddenly.They come little by little.At first people do not notice their danger.Schoolboys pick up little A fairground vehicle of total mass 20 000 kg started from rest on a downhill track and 80 seconds later,after travelling a distance of 120 m,it reached a speed of 25 m s–1 at the bottom of the track,30 m lower than its starting point.Its gain of ki 英语翻译I was about to take part in a downhill race as part of the Junior World Championship.It was the first time I had been to Australia .I was waiting at the foot of the starting line and I watched a French girl start .She want off down the mo speed 过去式speed的过去式是sped?那么sped是什么? It is easier to go downhill than _climb up hill为什么这里要填to?than在这里是介词吗? It is easier to go downhill than to climb uphill （短文答案）It is easier to go downhill than to climb uphill,so it is easier to fall into bad habits than to form good ones.Bad habits do not come suddenly.They come little by little while people 帮我翻译下..还有填下空It's easier to go downhill than to climb uphill,so it's easier to fall into good___.a.oneb.onesc.otherd.others which animal run faster uphill than downhill? how to work the follow question?-Did you see who the driver was? -No,so quickly___that i couldn`t get a good look at his face. A. did the car speed by B.the car sped by 英语翻译“Sam’s”life goes further downhill once police officers catch him,Visitors get to experience what it is like in prison as one of the maze checkpomts is a prison sell（asmall room built for prisoners） are you at it? it is difficult at