常見例句One day he asks you to prepare breakfast for him, and the only timepieces in the house are two hourglasses.一天，他讓你爲(wèi)他準(zhǔn)備早飯，而家裡能找到的計時器衹有兩個沙漏。The development of mechanical timepieces witnessed the search for more accurate sundials with which the timepieces could be regulated.由於機械計時器的發(fā)展，人們開始尋求更精確的日晷，以便校準(zhǔn)機械計時器。 返回 timepieces