SIDS is a medical name. The letters stand for Sudden Infant Death Syndrome.

SIDSSIDS is a medical name是一個醫學名稱。The letters這幾個字母 stand for代表 Sudden Infant Death SyndromeSudden Infant Death Syndrome（嬰兒猝死症候群）。

It is when a baby who seemed well dies during sleep, and doctors cannot find a reason — not an accident, not a known illness. The baby stops breathing and does not start again. It is talked about with very young babies, usually in the first year.

It is指的是 when a baby who seemed well dies during sleep一個看起來好好的寶寶在睡覺時死亡, and doctors cannot find a reason而醫生找不到原因 — not an accident不是意外, not a known illness也不是已知的疾病。The baby寶寶 stops breathing會停止呼吸 and does not start again而且不會再開始。It is talked about這個詞是用在 with very young babies非常小的寶寶身上, usually in the first year通常是一歲以內。

American English also used crib death; British English used cot death. Those older names are the same idea.

American English美式英文 also used也用過 crib deathcrib death這個說法; British English英式英文 used則用 cot deathcot death。Those older names這些較舊的說法 are the same idea指的是同一件事。

Nobody catches SIDS from someone else; it is not a germ. Advice about safe sleep, like putting a baby on its back, has made it less common in many countries, but the cause is still not fully understood.

Nobody catches SIDS from someone else沒有人會從別人身上感染SIDS; it is not a germ它不是一種病菌。Advice about safe sleep安全睡眠的建議, like putting a baby on its back像是讓寶寶仰睡, has made it less common in many countries已經讓它在許多國家變得比較少見, but the cause is still not fully understood但確切原因至今仍沒有完全弄清楚。

You say it as four letters: S-I-D-S.

You say it這個字要唸成 as four letters四個字母: S-I-D-SS-I-D-S。

This is a heavy, careful word. Use it for this exact medical idea, not as a soft way to talk about every death of a baby.

This is這是 a heavy, careful word一個沉重、需要小心使用的詞。Use it要用 for this exact medical idea在這個精確的醫學概念上, not as a soft way不要拿來當作一種婉轉的說法 to talk about every death of a baby泛指所有寶寶的死亡。