Don't play with scissors or pen knives.
不要玩剪刀或美工刀。
Typically, you'll find a "pen" blade on pocket knives.
通常，你会发现笔形刀刃出现在口袋刀上。
There is a pen, two knives and several books on the table.
桌子上有一支钢笔、两把小刀和几本书。
There are two knives, a pen and several books on the table.
桌子上有一支钢笔、两把小刀和几本书。
There are two knives, a pen and several books on the table.
桌子上有一支钢笔、两把小刀和几本书。
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