Leftmost derivation sequence
[计] 最左推导序列
🧩 词语组成解析
a. 最左边的
derivation
['dɛrə'veʃən]
n. 引出，导出;衍生，衍生物;[语]词源，派生;出处，由来，起源;
de 离开 + riv流动 + ation表名词 → deriv(e)流自...=起源+ ation表名词 → 词源；来历
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
He was my roommate in college.
他是我大学时的室友。
There's many a slip between the cup and the lip.
天有不测风云。
However, there are undoubtedly some wrong ways,
然而，却毫无疑问地有几种错误的方法。