Get a new, unused knife, preferably one with the black handle.
首先呢，要有一把全新的，没有被使用过的小刀匕首（黑柄匕首最为理想）
During the waning phase of the Moon, bring some water to the boil and add some red chili peppers, and salt in it.
选一个下弦月的夜晚，煮沸一锅纯净水，然后往翻腾的水里加一些红辣椒粉以及适量的盐。
Dip the knife in it three times, saying something along these lines:
紧接着，手持黑柄匕首轻轻蘸三次锅中的水，同时朗诵以下给出的咒语：

“As the Moon wanes, and as this blade cuts,
So will you N.N. stay away, and be cut away
From this home, and this place
And will not enter this dwelling.
Amen”
Place it on a napkin or a paper towel and allow it to air dry.
随后把黑柄匕首放置于纸巾上自然晾干。
When it does, find a way to hide it somewhere around your front door doorstep ( or if it’s a specific room, in front of these room’s doors ), pointing outwards and normal ( under 90’ angle ) to the door’s plane.
当一切都完成之后，把黑柄匕首小心翼翼地藏在你家前门（正门）周围的某个地方，摆的时候指向外侧，并且通常与门面有一个不超过九十度的夹角。
You can for example place it under the rug or doormat etc.
例如，你可以把黑柄匕首藏在前门（正门）的地毯或者门垫之类的地方。
Next to it, or somewhere on the doorframe also place a sprig of Basil, wrapped around the base with a red yarn or thread.
接下来在门框某个特定的位置放一捆底部缠绕有红色纱线的罗勒叶。
Most people like to hang this little sprig just above the doors.
大多数巫师喜欢把这一捆底部缠绕有红色纱线的罗勒叶悬挂在门廊上。
The person who you don’t wish to enter your home, should not be able to, after you’ve done this.
魔法一旦完成，任何你所仇视或不欢迎的恶人，都将无法轻易进入你的屋内。