人们做科学工作首先从观察证据开始。
People all begin scientific work with the observation of evidences.
虽然很难证实(缺乏国家数据),但是观察证据显示现在一个家庭的补助金比起以前要少。
Though hard to prove (national figures are not available), anecdotal evidence suggests that the family grant can be worth less than the former array of benefits.
证明证据不只是观察。
We always have to look around us and account for all the evidence.
我们总是四周观察,并对所有证据都作出解释。
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