If they're as good as the rest of these pictures, it's a deal.
假如它们跟这儿其余的照片一样好的话, 我们的交易就成了。
the necessary method of study is to group the relevant material and to take note of all possible variant forms and conditions.
应采取的研究方法是,把有关各方面的材料汇集起来,同时注意任何可能出现的异常情况和条件。