centuries是什么意思?

over the past centuries是什么意思?如题 英语翻译朋友们,我不明白上面的16th and 17th centuries是什么意思,为什么centuries 是复数 over the past centuries over the centuries怎么翻译? over the last seventeenth centuries的翻译 Supporting women for six centuries 翻译 American English has changed () the centuries. three seconds、three years、three centuries 英语翻译19世纪是 19 century 还是19 centuries?nineteen centuries。可以这么写 sleep and dream have interested people for centuries什么意思? _The___abacus was invented by Chinese centuries 为什么填the? 英语翻译this composition has been developed during the centuries