三万的英文怎么写

　　They offered their house for sale for thirty thousand dollars.

　　他们出售房子，要价三万美元。

　　His income to-day is at least thirty thousand a year.

　　而他今天的收入每年至少是三万。

　　Well, in round figures we've spent twenty thousand so far.

　　嗯，说个约数吧，我们至今花了有两万了。

　　Several thousand people marched on City Hall.

　　数千人涌往市政厅进行抗议。

　　In the worst-case scenario more than ten thousand people might be affected.

　　在最坏的情况下，有一万多人可能会受到影响。