grammar → 與
TSUMUGU · TBCL 4 (est.) · 語法
grammar point · tier 1 · 與 — joins two noun-like items into one pair (formal 'and/with')
· yǔ
And (formal): sets two noun-like items side by side as one equal pair, in written or formal speech.

字源 FORM what the parts do

Four hands (舁) raise a thing together while one more hand (与) passes it across; 與 is that handing-between. Set between two items, it draws both onto the one thing they share.

故事 STORY a scene to remember it by

Hands reach in from the left and from the right to grip one load between them, and the two sides hold as a single set.
字源自撰記憶法
框 · Frame
[item A] 與 [item B]
觸 · Trigger
Two things belong together as a set, and the register is written or formal.
序 · The move
1Hold the two items you want as one pair.Are both noun-like (people, places, things, names)? 與 will not carry a verb phrase or a whole clause.
2Place 與 between them: A 與 B.Could A and B swap sides and mean the same set? They should, because 與 weights them equally.
3Check the register before you choose 與 over 和/跟.Is this writing, a title, or formal speech? In everyday talk, 和 or 跟 is the natural choice.
例 · Examples
1日月潭Sun Moon Lakeand (formal)阿里山Alishanboth; allare臺灣Taiwan有名的famous旅遊地點tourist spot
Sun Moon Lake and Alishan are both famous tourist spots in Taiwan.
界 · Boundary
與 and 和 both pair two noun-like items, but 與 belongs to written and formal register; 和 is the everyday spoken choice. Same join, different setting.
與 stands two items side by side as an equal pair (A 與 B); 跟 puts the subject alongside one person in a shared action (跟他去). Pairing versus accompanying.
✗ 我唱歌與跳舞。 → ✓ 我唱歌,也跳舞。 (與 joins noun-like items, not verb phrases.)
✗ 我們昨天去玩,與天氣很好。 → ✓ 我們昨天去玩,天氣也很好。 (與 joins items inside one clause, not two whole clauses.)
✗ 在聊天時說「蘋果與香蕉我都愛」(stilted) → ✓ 蘋果和香蕉我都喜歡。 (casual talk takes 和, not 與.)
English 'and' joins verbs and clauses freely and carries no register weight. 與 only links noun-like items, and it reads formal. Dropping it into casual speech sounds stiff where 和 belongs.