An incision is a neat, deliberate cut into something — most often the cut a doctor makes in the skin during an operation. It is a clean line, not a tear, a gash, or a bite.

An incision Incision切口is a neat, deliberate cut into something是刻意在某個東西上劃出的整齊切口——most often the cut a doctor makes in the skin during an operation最常指醫生在手術中在皮膚上劃的那一刀。It is a clean line是一條乾淨俐落的線，not a tear, a gash, or a bite不是撕裂傷、割傷或咬傷。

After surgery people talk about “the incision” the way they talk about a place on the body: it may be sore, it may need stitches, and the scar later follows that line.

After surgery手術後，people talk about “the incision”大家會說「the incision這個切口」the way they talk about a place on the body就像在講身體上的某個部位一樣：it may be sore它可能會痛，it may need stitches可能需要縫合，and the scar later follows that line之後的疤痕也會沿著那條線。

The word can also be used outside medicine for a similar careful cut, for example in craft or science, but learners will meet it first in hospitals. It names the cut itself, not the whole operation.

The word can also be used outside medicine for a similar careful cut這個字在醫學之外也可以用來指類似的仔細切割，for example in craft or science比如在工藝或科學領域，but learners will meet it first in hospitals但學習者最先會在醫院裡遇到它。It names the cut itself, not the whole operation它指的是那個切口本身，不是整個手術。

Formal, precise English. In casual talk a patient may still just say “the cut.”

Formal, precise English正式、精確的英文用字。In casual talk a patient may still just say “the cut.”口語裡病人可能還是只會說「the cut這個傷口」。