Difference sequence
[计] 差分序列
🧩 词语组成解析
sequence
['si:kwəns]
n. [数]数列，序列;顺序;连续;片断插曲;
vt. 使按顺序排列，安排顺序;[生化]确定…的顺序，确定…的化学结构序列;
🗣️ 情景例句
I have worked hard at my major subject.
我对主修课特别用功。
The best teacher one can have is necessity.
我们能得到的最好教师是“需要”。
and you avoid the frustration of arriving at the very moment when the train is drawing out of the station and being unable to get on it.
而且可以避免那种正好在火车驶出站时赶到车站，因上不去车而感到的沮丧。