entries → 出差
TSUMUGU · TOCFL B1 (est.) · 詞
出差 word · TOCFL B1 (est.)
出差 ＝ 出 ＋ 差
ㄔㄨ ㄔㄞ · chūchāi
verb — to go on a business trip; to be away on an assignment

字源 FORM — what the parts do

出to go out (出去)chū
差an errand; an official assignment (差事)chāiread chāi for "errand/posting", not chà "to differ"
出差，出去的出，差事的差。

故事 STORY — a scene to remember it by

為了公司的差（差）事，出（出）門到外地去。
Sent out (出) on an assignment (差) — off to another city for work.
關 · Related
差事chāishithe assignment one goes out on — the same 差旅行lǚxíngtravel — but for pleasure, the contrast