Tonsillitis is what you have when your tonsils get infected and swell up. It is the ordinary English name for 扁桃腺發炎, and it is a word people use about themselves quite comfortably — you do not need to be a doctor to say it.

Tonsillitistonsillitis is what you have when your tonsils get infected and swell up是指你的扁桃腺發炎腫起來的狀態。It is the ordinary English name for 扁桃腺發炎它就是「扁桃腺發炎」的普通英文說法，and it is a word people use about themselves quite comfortably而且大家講自己的狀況時也很自然會用這個字——you do not need to be a doctor to say it不需要是醫生才能講這個字。

The usual signs are a very sore throat, pain when you swallow, a fever, and sometimes white spots on the tonsils. It is most common in children, and it can come back again and again in the same person.

The usual signs are a very sore throat, pain when you swallow, a fever, and sometimes white spots on the tonsils常見的症狀是很痛的喉嚨、吞嚥時會痛、發燒，有時扁桃腺上還會有白點。It is most common in children這在小孩子身上最常見，and it can come back again and again in the same person而且同一個人可能會一再復發。

Grammatically it behaves like other illness words of this kind: no 'a' and no plural. You say 'I have tonsillitis', 'she's off school with tonsillitis' — never 'a tonsillitis' or 'tonsillitises'.

Grammatically文法上，it behaves like other illness words of this kind它跟同類的病名用法一樣：no 'a' and no plural不加'a'，也沒有複數。You say 'I have tonsillitis', 'she's off school with tonsillitis'你會說'I have tonsillitis'、'she's off school with tonsillitis'，never 'a tonsillitis' or 'tonsillitises'絕不會說'a tonsillitis'或'tonsillitises'。

The stress falls on the fourth syllable: ton-sil-LY-tis.

The stress falls on the fourth syllable重音落在第四個音節：ton-sil-LY-tis唸作ton-sil-LY-tis。

Learning this word gives you a bonus, because the -itis ending is everywhere in English for infections and swelling, and it always keeps the same meaning.

Learning this word gives you a bonus學這個字還有個附加好處，because the -itis ending is everywhere in English for infections and swelling因為-itis這個字尾在英文裡到處都用來表示發炎腫脹，and it always keeps the same meaning而且意思都一樣。