When you compare the prices,you must take everything into consideration.
当你在考虑对比价格时,首先必须把一切都要考虑进去。
The search proved difficult, for the puma was often observed at one place in the morning and at another place twenty miles away in the evening.
事实上搜寻工作很困难,因为常常是早晨在甲地发现那只美洲狮,晚上却在20英里外的乙地发现它的踪迹。