1. 防滑钉铁蹄：roughscuff 下层人民 | roughshod 防滑钉铁蹄 | roughstring 楼梯内侧基板

2. 钉有防滑蹄铁的：roughshod 残酷无情的 | roughshod 钉有防滑蹄铁的 | roulade 急速调子

3. 残酷无情的：roughrider 野马的骑士 | roughshod 残酷无情的 | roughshod 钉有防滑蹄铁的

1. 欺凌;为所欲为;横行霸道
If you say that someone is riding roughshod over a person or their views, you disapprove of them because they are using their power or authority to do what they want, completely ignoring that person's wishes.

e.g. These laws allow the security forces to continue to ride roughshod over the human rights of the people.
这些法律允许安全部队继续践踏人权。

adj

1. unjustly domineering

e.g. incensed at the government's heavy-handed economic policies
a manager who rode roughshod over all opposition

Synonym: heavy-handed

2. (of persons or their actions) able or disposed to inflict pain or suffering

e.g. a barbarous crime
brutal beatings
cruel tortures
Stalin's roughshod treatment of the kulaks
a savage slap
vicious kicks

Synonym: barbarousbrutalcruelfellsavagevicious

3. (of a horse) having horseshoes with projecting nails to prevent slipping