请告诉我如何制作一杯美式咖啡。具体步骤分成四个段落进行描述，每段三句话。在描述中，不能出现“然后”、“接着”这类表示顺序的词语。此外，为了便于国际友人理解，在每个步骤中都附上英文说明。
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制作美式咖啡的第一步是准备所需的材料。 一个干净的咖啡机、新鲜研磨的咖啡豆和适量的水是必不可少的。 准备一套量具和计时器，以确保制作过程中的准确度。 Preparation of Americano coffee starts with gathering the necessary materials. A clean coffee machine, freshly ground coffee beans, and an adequate amount of water are essential. Prepare a set of measuring tools and a timer to ensure accuracy during the brewing process. 

为咖啡机添加水，并根据个人口味选择合适的咖啡粉量。 将咖啡粉均匀地放入过滤器中，并轻轻平整表面。 记得不要压实咖啡粉，以免咖啡味道过浓。 Add water to the coffee machine and select the appropriate amount of coffee grounds based on personal taste. Place the coffee grounds evenly in the filter and gently level the surface. Avoid pressing the coffee grounds too tightly to prevent the coffee from tasting too strong. 

启动咖啡机，开始萃取咖啡浓缩液。 观察萃取的过程，确保时间控制在1-1.5分钟之间，以获得最佳风味。 浓缩液紧紧覆盖在杯子中，等待最后一步的加入。 Start the coffee machine to begin extracting the espresso. Monitor the extraction process and ensure it takes between 1 to 1.5 minutes for the best flavor. The espresso should closely cover the bottom of the cup, awaiting the final step.

准备热水，这是制作美式咖啡不可或缺的部分。 将热水徐徐倒入盛有浓缩液的咖啡杯中，直到杯子快要满上，但又不会溢出。 轻轻搅拌，让浓缩液与热水充分融合，一杯简单的美式咖啡就完成了。 Prepare the hot water, an essential part of making Americano coffee. Gently pour the hot water into the cup containing the espresso until the cup is nearly full but not overflowing. Gently stir to fully combine the espresso with the hot water, and your simple Americano coffee is complete.
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