Backward difference method
[计] 后向差分法
🧩 词语组成解析
🗣️ 情景例句
Interesting. What do you photograph?
很有意思。你拍些什么样的照片呢？
It's impossible. You may notice that the cost of raw materials has gone up in recent years.
不可能，您可能注意到了近年来原材料的价格上涨了。
It was orange and blue.
鱼身呈橙蓝色。