Backward difference method
[计] 后向差分法
🧩 词语组成解析
🗣️ 情景例句
She finished the race strongly.
她很有毅力地跑完了全程。
No one can call back yesterday.
往日不复返。
No, not exactly. But later, peole developed a way of printing, using rocks.
不完全是这样。但后来，人们利用石头，研制了一种印刷方法。