名詞 doorstep:

1. the sill of a door; a horizontal piece of wood or stone that forms the bottom of a doorway and offers support when passing through a doorway
   同義詞：doorsill, threshold

1. News reporters camped upon his doorstep day and night.
   一些新聞記者日夜在他門口糾纏不走。
2. A frightening brew of poisonous waste is said to be accumulating in Britain's biggest chemical dump ... The local authority ... is rightly worried about the ... tip on its doorstep.
   據說驚人的大量有毒物質正堆在英國最大的化學物品廢品站里 ... 當地政府 ... 對 ... 堆在它門口的垃圾理所當然地感到憂慮。
3. Put your empties on the doorstep for the milkman.
   把空奶瓶放到門階上，等送奶人來取。

door.step

n.（名詞）
A step leading to a door.
門階：進入一個門的臺階