These for the arms.

这是铐手臂
This is for the neck.

这是铐脖子
Works like so.

示范给你看
When the slaves leave port in Africa,

黑奴从非洲上船
they're locked into a space four foot by 18 inches.

被关在一个不到半坪的地方
They have no sanitation, very little food, stagnant water.

卫生差且食物少水都发臭
Their waste and blood fills the holes within three days and is never emptied.

三天不到血和粪就塞满排水孔
These irons and chains are to keep them from throwing themselves overboard.

而且从未通过
The chains are not unlocked until you reach the plantation in Jamaica.

铁链则是用来防止他们落水
Around half of the slaves are dead already.

到牙买加之前铁链未曾松绑
In the markets, they stuff knotted rope

半数黑奴在途中死了
into the anuses of those who are sick

市场上的黑奴肛门都塞着粗绳