核心畫面

One way to picture one-to-one: two rows facing each other, with a single line drawn between each pair. One thing on the left, one thing on the right, nothing spare and nothing shared. Everything this word does comes from that picture. When the two rows are rows of people, there are exactly two people in the room. When they are rows of things, every item has its own partner.

one-to-one 可以想成兩排東西面對面站著,每一組之間畫一條線。左邊一個,右邊一個,沒有多的,也沒有共用的。它更多收起one-to-one 可以想成兩排東西面對面站著,每一組之間畫一條線。左邊一個,右邊一個,沒有多的,也沒有共用的。它所有的意思都從這張圖長出來。當兩排是人,房間裡就剛好兩個人;當兩排是東西,每一個都有自己的搭檔。中間那個 to 是「朝向」,正好就是那條連線。

Two branches

配對:一個對一個

這一家直接就是核心畫面本身:兩排東西,一條線一組,兩邊都不剩。

adjective · B2

Where each thing in one group matches exactly one thing in another group, so nothing is left over and nothing is shared on either side.

一對一對應的

人:房間裡只有兩個

把配對的兩邊換成人,那條線就變成一個人對著另一個人。人數被鎖死在兩個,第三個人進不來。

adjective · B1

Involving only two people, with nobody else taking part — one teacher with one student, or one manager with one worker.

一對一的