Tamper-evident describes a package built so that you can SEE if someone has opened it before you. Think of the plastic ring under a bottle cap that breaks when you first twist, the foil seal on a yoghurt pot, the sticker across a box that tears and cannot be put back neatly. All of these are tamper-evident.

Tamper-evident describes a package builtTamper-evident形容的是一種包裝設計 so that you can SEE if someone has opened it before you讓你可以「看得出來」有沒有人在你之前打開過。 Think of the plastic ring under a bottle cap that breaks when you first twist想想瓶蓋下面那圈第一次扭開就會斷掉的塑膠環， the foil seal on a yoghurt pot優格盒上的鋁箔封膜， the sticker across a box that tears and cannot be put back neatly還有貼在盒子上、一撕就破、沒辦法完好貼回去的封條貼紙。 All of these are tamper-evident這些全部都是tamper-evident。

Here is the part students miss: tamper-evident does not mean nobody can open it. It means nobody can open it secretly. The seal is not a lock; it is a witness.

Here is the part students miss學生最容易漏掉的一點是： tamper-evident does not mean nobody can open ittamper-evident不是說沒有人打得開它。 It means nobody can open it secretly它的意思是沒有人能偷偷打開它。 The seal is not a lock那個封條不是一把鎖； it is a witness它是一個見證者。

Compare tamper-proof or tamper-resistant, which claim the thing is hard to open at all. Companies mostly say tamper-evident precisely because they cannot honestly claim tamper-proof — you can cut into almost anything if you try.

Compare tamper-proof or tamper-resistant拿tamper-proof或tamper-resistant來比較， which claim the thing is hard to open at all這兩個字宣稱的是這東西根本就很難打開。 Companies mostly say tamper-evident precisely because they cannot honestly claim tamper-proof公司大多說tamper-evident，正是因為他們沒辦法老實地宣稱tamper-proof — you can cut into almost anything if you try——幾乎任何東西只要有心都能被切開。

The word is formal and belongs to packaging, medicine, food safety, elections, and computer security (a tamper-evident log records changes so you can tell if someone edited it). You will read it on labels and in news reports, not hear it in conversation. It is written with a hyphen and normally goes before the noun: a tamper-evident seal, tamper-evident packaging.

The word is formal這個字很正式 and belongs to packaging, medicine, food safety, elections, and computer security用在包裝、醫藥、食品安全、選舉，還有電腦安全這些領域 (a tamper-evident log records changes so you can tell if someone edited it)（a tamper-evident log(防篡改留痕紀錄)會記錄變動，讓你看得出來有沒有人改過）。 You will read it on labels and in news reports你會在標籤和新聞報導上讀到它， not hear it in conversation不會在日常對話裡聽到。 It is written with a hyphen這個字要用連字號寫 and normally goes before the noun通常放在名詞前面： a tamper-evident seal, tamper-evident packaging像a tamper-evident seal(防拆封條)、tamper-evident packaging(防拆封包裝)。