我已经要求科技部举办一个国家级的庆典，以庆祝我们20世纪卓越的科学家钱德拉·塞卡教授的百年诞辰。

I have asked our the Ministry of Science and Technology to undertake a national celebration of the birth centenary of Professor S.Chandrasekhar, one of the outstanding scientists of the 20th century.

youdao

尽管在万圣节前夜乞求，或是索要食物的习俗已经有几百年，但“不给糖就捣蛋”的说辞是从20世纪30年代才出现的。

While the practice of begging for, or demanding, food on Hallows Eve was centuries old, the words "trick or treat" apparently came into use in the 1930s.

youdao

尽管在万圣节前夜乞求，或是索要食物的习俗已经有几百年，但“不给糖就捣蛋”的说辞是从20世纪30年代才出现的。

While the practice of begging for or demanding food on Hallows Eve was centuries old the words "trick or treat" apparently came into use in the 1930s.

youdao

And again, I think these days they tend to down date it by another century or so, so it might be around 1900 B.C.

其实在今天,我认为他们又能把时间再推进,一个世纪左右,即精确到公元前一千九百年左右

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