…a ridge with a gentle slope (dip) on one side and a steep slope (scarp) on the other…
…slope…
…it's hard to open…
…how much is it?…
…to go uphill…
…he finds physics difficult…
…how much does it cost one way?…
…I find it hard…
…a very steep slope…
…I was running downhill…
…I find it hard to believe…
…it's not easy to get used to…
…he came striding down the hill…
…it won't do you any harm to give it a try…
…he came up the hill (puffing and) panting…
…it costs 2,000 pounds easily…
