2个英语问题请教高手At the turn of the 20th century dozens of time bal

来源：学生作业帮编辑：拍题作业网作业帮分类：英语作业时间：2024/05/20 02:32:51

2个英语问题请教高手
At the turn of the 20th century dozens of time balls were being dropped around the world. 为什么要用过去进行时

Twenty sites on six continents will observe a tradition best exemplified by the lowering of the lighted time ball in New York City.帮我翻译

Dozens of time balls had been dropped around the world at the turn of the 20th century.
6大洲的20个网站将能够目睹纽约市以下降的发光时代球为特色的传统.
p.s.时代广场的球每年午夜时分都会下降,在零点准时落到时代广场上

2个英语问题请教高手At the turn of the 20th century dozens of time bal At the turn of the 20th century.求翻译 at the turn of the century是什么意思 at the turn of the century翻译 at the turn of the century是什么意思? at the turn of 20th century是20世纪初还是20世纪末? 英语语法问题"of this period" "at this time" "in the 13th century" the story takes place at the turn of the 19th century in the at the turn of 20th by the turn of the century 和at the turn of the c around the turn of the 20th century指的是几几年 around the turn of the century是什么意思?