Chen Li in the room didn't know the situation outside.

Once he had an idea, he picked up the tools and started making them.

It is too difficult to pull the bow and arrow, so he directly makes it a catapultable design, as long as he presses the switch next to it, the arrow will rush out with a "whoosh".

The bow and arrows were too big to handle, so he chose the lightest of the woods......

Chapter 30 of "The First Prince of the Tang Dynasty" will teach you well, and you can understand it at one point! I am hitting it in my hand, please wait a moment,

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