The disease is spreading at a rapid rate.

　　這種疾病正在迅速蔓延。

　　Last year the detection rate for car theft was just 13%.

　　去年汽車(chē)盜竊案的偵破率僅為13%。

　　They pay slightly more than the going rate.

　　他們支付的酬金略高于現行標準。

　　Interest is charged at a flat rate of 11%.

　　利息按標準比率11%收取。

　　The key is, how long can the federal government control the inflation rate?

　　關(guān)鍵在于聯(lián)邦政府對通貨膨脹率的控制能維持多久？