The state of Liberia was formed a century and a half ago by freed slaves from the United States.

一个半世纪以前，从美国获得自由归来的奴隶们建立了利比里亚国。

She may no longer be a slave to the studio system, but she still has a duty to her fans.

她也许不再受制片公司制度的控制了，但她对其粉丝还负有责任。

He stares at the hundreds of workers slaving away in the intense sun.

他凝视着几百个正在烈日下苦干的工人们。

When you're busy all day the last thing you want to do is spend hours slaving over a hot stove.

当你忙碌了一整天后，你最不愿意做的事就是在热烘烘的炉子边再忙活上好几个钟头。