was called the Brookings Papers on Economic Activity,

名为布鲁克林经济活动论文集

He surely, as much as anyone,

他和其他很多人一样

you people do all kinds of stuff.

当然人们总是这样

from which you cannot even come out until somebody rescues you.

永远无法得到论证 除非有人来帮你们

that might even last for centuries.

可能甚至持续了数世纪

plague had a pronounced seasonality.

瘟疫有一种明确的季节性

when grain is leaving the town, but obviously the subtext is

那时候粮食被运走 很显然的是

The harvest fails. Credit is withdrawn.

庄稼歉收 结余减少

what you lose on the swings you gain on the swerves

那种有失有得评论的影响

It should be clear, from what I have said, where I am going.

我的出发点和结论应该比较清晰

And so then it's going to go down again.

所以出生率又会开始下降

with baby booms and busts.

有婴儿潮然后是低潮