by Montgolfier in the late eighteenth century, and the balloon becomes a sort of symbol of perhaps liberty.

在十八世纪末发明的,而从此热气球也成了某种自由的象征

耶鲁公开课 - 1871年后的法国课程节选

The last regular mail delivery was on September 19th, and thereafter they used balloons.

最后一封常规邮件于九月十九日发出,在那之后他们只能用热气球传送消息

耶鲁公开课 - 1871年后的法国课程节选

One astronomer actually left Paris to go off and to observe an eclipse.

期间还有一位天文学家乘坐热气球离开巴黎,去观看月食

耶鲁公开课 - 1871年后的法国课程节选

And during the siege there were sixty-five balloon flights carrying two and a half million letters, weighing a grand total of 10,000 kilograms, so roughly about 20,000 pounds.

在巴黎被围期间,共放出了六十五个热气球,带走了多达两百五十万封信,合计重量约有一万公斤,也就是两万磅左右

耶鲁公开课 - 1871年后的法国课程节选

The Germans bring in these falcons and they go out and they munch the pigeons; and so this was another reason for them, just like the Germans, these poor little pigeons who became the sort of sacred bird, I guess a pigeon's a bird.

德国人带了很多隼到法国,用以捕杀信鸽,这是改用热气球的另一个原因,拜德军如此行为所赐,可怜的鸽子成为了圣鸟,我想鸽子是一种鸟吧

耶鲁公开课 - 1871年后的法国课程节选