An eraser is the small piece of rubber — or a similar soft stuff — that you rub on paper to take away pencil, and sometimes pen. In British English people often just say rubber for the same thing; in American English eraser is the ordinary classroom word, and rubber can make people laugh because it also means a condom.

An eraser is所謂eraser，是指 the small piece of rubber — or a similar soft stuff —一小塊橡膠——或類似的軟材質—— that you rub on paper to take away pencil, and sometimes pen.用來在紙上擦掉鉛筆，有時候也擦得掉原子筆。 In British English people often just say rubber for the same thing;在英式英文裡，同樣的東西常常直接叫rubber； in American English eraser is the ordinary classroom word,在美式英文裡，eraser才是教室裡常用的說法， and rubber can make people laugh because it also means a condom.而rubber在美式英文裡會讓人發笑，因為它也是保險套的意思。

On a pencil it sits at the end; on a desk it is a separate block. Some are for pencil only; ink erasers and whiteboard erasers are named for what they wipe. It is a homely, everyday noun — nothing formal about it.

On a pencil it sits at the end;裝在鉛筆上時，它在筆的末端； on a desk it is a separate block.放在桌上時，就是單獨一塊。 Some are for pencil only;有些只擦得掉鉛筆； ink erasers and whiteboard erasers are named for what they wipe.ink eraser（擦墨橡皮）跟whiteboard eraser（白板擦）則是照它們擦什麼來命名的。 It is a homely, everyday noun這是個很家常、日常的名詞， — nothing formal about it.——一點都不正式。

Though actually, it only names the tool. The act of rubbing out, or the empty space left behind, is erasure, a different word.

Though actually,不過其實， it only names the tool.它指的只是這個工具本身。 The act of rubbing out, or the empty space left behind,擦掉的這個動作，或是擦掉後留下的空白， is erasure, a different word.是erasure，是另一個字。