病原進入身體的過程
同一個畫面往前推一格：不是講已經發生的病，而是講病原「進來」這個動作本身。
process of catching a disease · noun · B2
The act of getting a disease, or the way a disease passes into your body.
感染（過程）
核心畫面
Picture something alive and far too small to see getting inside the body and starting to multiply there. The word covers both halves of that picture — the getting-in, and the trouble it causes once it is in. Which half you mean depends on the sentence, not on a different word.
可以想成：某種活的、小到看不見的東西進到身體裡，開始在裡面繁殖。這個字同時涵蓋這個畫面的兩半——「進去」這件事，和進…更多收起
可以想成：某種活的、小到看不見的東西進到身體裡，開始在裡面繁殖。這個字同時涵蓋這個畫面的兩半——「進去」這件事，和進去之後造成的那個麻煩。至於你指的是哪一半，靠句子決定，英文並沒有換字。From the picture
Also in this word
illness from germs · noun · B2
An illness in a part of your body that is caused by very small living things like bacteria or a virus.
感染
原始詞典資料4 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
infectionnoun/ɪnˈfɛkʃən/
- 1
medicinepathologysciencesThe act or process of infecting.
- 2
An uncontrolled growth of harmful microorganisms in a host.
- An artificial kidney these days still means a refrigerator-sized dialysis machine. Such devices mimic[…]real kidneys[…]. But they are nothing like as efficient, and can cause bleeding, clotting and infection—not to mention inconvenience for patients, who typically need to be hooked up to one three times a week for hours at a time.
- 3
A disease caused by such presence of a pathogen.
- As the previously used chemotherapeutic agents have only proved themselves to be spirochetostatic and not spirochetocidal, the patient is liable to a delayed infection which may not become manifest for years.
- And researchers at the National Institutes of Health report finding candidalike fungus infections in the blood of AIDS victims.
- 4
A visible sign of such a disease, such as the suppuration of a wound.
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。