把水引到土地上
這是這個字最原本、也最常見的場景：水從河、湖或井被引到田裡。
verb · B2
To bring water to land or to crops, usually by moving it along pipes, ditches, or channels from a river, a lake, or a well, so that the plants can grow.
灌溉
核心畫面
You can think of irrigate as leading water to a place that needs it and letting it run across the whole surface. Someone opens a way — a ditch, a pipe, a tube — and the water keeps flowing until everything it touches has been reached. The water does not arrive by itself, and one splash is never enough.
「irrigate」可以想成：有人開了一條路給水走，水就沿著那條路一直流過整個面。水溝、水管、細管子都是那條路。重點…更多收起
「irrigate」可以想成：有人開了一條路給水走，水就沿著那條路一直流過整個面。水溝、水管、細管子都是那條路。重點有兩個：一是水是被引過來的，不會自己到；二是水要持續流，流到整片都碰到為止。抓住這個畫面，田地和傷口就是同一件事的兩個場景。From the word’s history
First attested around 1615, borrowed from Latin irrigatus, the perfect passive participle of irrigo, formed from ir- (in, into) plus rigare (to water, to wet) — literally to lead water into something.
一六一五年前後進入英文，借自拉丁文 irrigātus，是動詞 irrigō 的完成被動分詞；irrigō 由 ir-（往裡面）加 rigāre（引水、弄濕）組成，字面上就是「把水引進去」。這正好就是今天兩個用法共用的畫面。
Wiktionary entry for irrigate (kaikki:3f6f69a190036ae4:1195917363), supplied in this packet
Two branches
讓液體流過身體的傷處
同樣是引一股液體持續流過一個表面，只是被流過的地方從田地換成身體。
verb · C1
In medicine, to wash out a wound, an eye, or another opening in the body by letting clean liquid run steadily through it, so that dirt and other unwanted things are carried away.
沖洗（傷口）