vi.弄脏;污染;被玷污;
vt.玷污,染污;败坏(名声);给…染色;
n.污点;瑕疵;着色剂;色斑;
例句:
a blood/a coffee/an ink, etc. stain
血迹、咖啡渍、墨痕等
Be careful you don't stain the carpet.
当心别把地毯弄脏了。
How can I get this stain out?
我怎么才能把这点污渍除去?