What part of a clock is always old?

What part of a clock is always old? 英语翻译p51)Which part of a clock is always old?2)What five-lett which part of a clock is always old? 英语智力题What part of a clock is always old?(钟的哪部分总是旧的?） Which part of a watch is always old? “What letter is a part of body? what letter is a part of body? What letter is a part of head? What letter is a part of vegetable? Tibet,was,is and always will be a part of China,is a part no What is not a part of the job?的意思 what letter is a part of the face?