entries → 幹線
TSUMUGU · TOCFL 6 (est.) · 詞
幹線 word · TOCFL 6 (est.)
幹線 ＝ 幹 ＋ 線
ㄍㄢˋ ㄒㄧㄢˋ · gànxiàn
noun — trunk line, main artery (of rail, road, pipe)

字源 FORM — what the parts do

幹trunk, main part (樹幹)gàn
線line, route (路線)xiàn
幹線，樹幹的幹，路線的線。

故事 STORY — a scene to remember it by

路網像一棵樹，最粗的那條是樹幹（幹）的線（線）。
The road network is a tree; the thickest route is the trunk's (幹) own line (線).
記憶法
關 · Related
支線zhīxiànthe opposite — a branch line路線lùxiànthe everyday 線, a route