Carefully tip the marshmallow out on to the prepared board and cut into squares, using a sharp knife.
小心地倒出棉花糖，放在准备好的台面上，用刀切成块状。
Surplus glue is easily trimmed away with a sharp knife.
用锋利的小刀就能轻松地刮去多余的粘胶。
Everyone knows that a sharp knife cuts better than a dull one, but do you know why, exactly?
大家都知道锋利的刀刃的切割性能胜过钝刀，但您知道确切原因吗？
Then she had me use a pencil to draw a ghost face on the pumpkin and use a sharp knife to carve the shape.
之后老师让我用铅笔在南瓜上画个鬼脸，再用锋利的刀把鬼脸的形状刻出来。
Using a sharp knife, cut away the pith and peel from both fruits.
用一把锋利的刀削去两种水果的外皮和中果皮。
Then she had me use a pencil to draw a ghost face on the pumpkin and use a sharp knife to carve the shape.
之后让我用铅笔在南瓜上画个鬼脸，再用锋利的刀把鬼脸的形状刻出来。
Combine all the marinade ingredients in a ceramic or glass dish bowl. Pat duck breast dry. Score the duck skin in a crosshatch pattern with a sharp knife (take care not to cut into the flesh).
将腌汁材料放入瓷碗或玻璃容器里拌匀。抹干鸭胸的水份，用刀尖在皮面上划出十字格状。不要切断脂肪层而深入到鸭肉部分了。
What would you build if you only had the following items at your disposal: a deck of CARDS, an elevator, a sharp knife, a mile of string, a mirror, whatever you have in your pockets or bag right now.
一副牌，一个升降机，一把锋利的刀子，一英里的绳子，一面镜子，还有你现在口袋里或者包里的东西，无论它是什么。
快刀切削利落。
快刀切削利落。
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