同样，每天根据太阳的位移而相应关闭或打开窗帘也会有所帮助，也可以种植落叶树或安装篷帐来为住房提供阴凉。
Likewise, performing a daily routine of tracking the sun and then closing and opening curtains correspondingly should help, as will planting deciduous trees and fitting awnings to provide shade.
《回声》写于很久以前，因此它逃过了人们的注意，现在也没有人来叫我算其含意的旧帐。
The Echo was written so long ago that it has escaped attention and I am now no longer called upon to render an account of its meaning.
我们常常拿明天的钱来抵偿昨天的帐。
We often borrow from our tomorrows to pay our debts to our yesterdays.
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