Angry crowds and farmers on tractors besieged the Fed; the keys to cars that dealers could not sell were sent to him in the mail.

愤怒的人群和开着拖拉机的农民包围了美联储；汽车经销商把卖不出去的车钥匙邮寄给他。

We put the iron wheels on tractor in order to be able to go inside the paddy field with water, a little bit strange to see, but it's unique.

我们在拖拉机上安装了铁轮子，以便能够在水田里进行播种，看起来有点奇怪，但很独特。