A megapixel is one million pixels — the tiny dots that make a digital picture. Camera shops and phone ads use the number to talk about how detailed a photo can be: a 12-megapixel camera makes a picture out of about twelve million dots.

A megapixel isMegapixel是 one million pixels一百萬個畫素——the tiny dots that make a digital picture組成數位相片的那些小點點。Camera shops and phone ads use the number相機店和手機廣告用這個數字 to talk about how detailed a photo can be來講一張照片能有多細緻：a 12-megapixel camera makes a picture out of about twelve million dotsa 12-megapixel camera用大約一千兩百萬個小點組成一張照片。

People often hear a bigger number and think better camera, and advertising leans on that, though actually the size of the sensor, the lens, and the light can matter more than the count; a small cheap sensor packed with dots can still look grainy.

People often hear a bigger number and think better camera大家常常聽到數字比較大就以為相機比較好，and advertising leans on that廣告也愛靠這一點，though actually不過其實 the size of the sensor, the lens, and the light can matter more than the count感光元件的大小、鏡頭、還有光線，可能比數量還重要；a small cheap sensor packed with dots can still look grainy一個又小又便宜、硬塞很多點的感光元件，拍出來還是可能顆粒粗糙。

You meet the word with cameras, phone cameras, and sometimes screens. Informal speech may clip it to something like 48 megs; packs and specs write MP.

You meet the word你會看到這個字 with cameras, phone cameras, and sometimes screens在相機、手機相機、有時候螢幕上。Informal speech may clip it to something like 48 megs口語可能會簡化成像48 megs這樣；packs and specs write MP包裝和規格表則寫MP。

It is a count of picture-dots, not a weight, and it does not by itself tell you if a picture will look beautiful.

It is a count of picture-dots它是畫面小點的數量，not a weight不是重量，and it does not by itself tell you if a picture will look beautiful光靠它自己也不能告訴你照片會不會好看。