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Airplanes!
飞机！
They come in all sorts of weird shapes and sizes.
飞机有着千奇百怪的形状，大小也有很大差别。
But some of our favorites are paper airplanes.
但是我们最爱的还是纸飞机。
Quick, grab some craft paper to follow along.
快去拿一些手工纸跟着我们的步骤制作吧。
And we'll show you how to make a whole fleet, you can play with.
我们会向你们展示如何制作完整的机群，你们可以跟着学。
First up, the vortex thrower.
首先是涡旋飞机。
All you'll need is a piece of paper and some tape.
你需要一张纸和一些胶带。
Step 1, fold one side of the paper and then fold the fold on top of itself.
第一步，折叠纸张的一侧，然后将折叠部分折叠一次。
Then fold it again.
然后再折叠一次。
Step 2, take the ends of the paper and roll it into a cylinder and tuck the ends into themselves.
第二步，拿起纸的两端卷成圆筒状，将纸的一端塞进另一端。
Step 3, secure it with a little bit of tape at each end.
第三布，用胶带固定圆筒两端。
Throw it with a little wrist flick, and it's a great flyer!
转动手腕快速扔出去，这种纸飞机超赞！
Next, we have the hoop glider.
接下来我们制作滑翔机。
For this one you'll need two strips of paper, a straw, and some tape.
我们需要的工具包括两张纸条，一个吸管，一些胶带。
Step 1, take each strip of paper and fold them into a circle.
第一步，拿起每个纸条，分别卷成圆圈。
Secure the ends with tape.
用胶带固定两端。
Step 2, connect the two circles to each end of the straw.
第二步，讲两个纸圈连接到吸管的两端。
And check this one out, the helicopter.
看看这个，是直升机。
You will need a four-inch strip of paper, scissors, and a paper clip.
我们需要一张四英寸宽的纸，剪刀和一个回形针。
Start off by cutting a slit on either side of the paper.
先在纸的两边各剪一个口子。
Fold the paper onto itself.
把纸折起来。
Make a third cut down the center of your paper.
演着纸的中心剪第三次。
Fold one end, then flip it, and fold the other.
折叠一端，把纸翻过来，折叠另一端。
Fold the end over and secure your paper clip to the bottom.
将末端折叠起来，并将回形针固定在底部。
And voila, you have a helicopter.
瞧，一架直升机就做好了。
Last but not least, the Sky King.
最后且重要的是，纸飞机之王。
This record-breaking paper airplane design stayed in the air for over 27 seconds.
这种类型的纸飞机破了记录，在空中飞行超过27秒。
So get ready, there are a lot of steps in this one.
所以准备好，这种飞机的步骤很多。
Step 1, grab a sheet of paper and fold it in half, lengthwise.
第一步，拿一张纸，纵向对折。
Step 2, open it back up and fold in the front corners to meet at the center.
第二步，展开这张纸，将纸上面的两个角向中线折叠。
Step 3, fold the tip down to about 1 inch from the bottom of the paper.
第三步，将叠好的尖端向下折叠，到距离纸的底部约1英尺的位置。
Step 4, fold in the top two corners so the edges meet flush at the center and then undo the fold.
第四步，折叠顶部的两个角，使边缘在中心处齐平，然后展开折叠。
Step 5, fold the corners back in, so they meet just at the top, creating a new edge.
第五步，再次折叠两角，正好与顶部形成的折痕对齐，出现了新边。
Step 6, fold the sides in again along the creases that you'd made a couple steps earlier.
第六步，沿着前面步骤产生的折痕再次折叠两边。
Step 7, fold the tip of the nose down so it meets the center point, then unfold it back up.
第七步，将尖端向下折叠，使其与中心点对齐，然后展开。
Step 8, fold the paper in half.
第八步，将纸对折。
Step 9, fold the tip of the nose back, to meet the crease that you made earlier.
第九步，将尖端往回折叠，与你之前产生的折痕对齐。
Step 10, unfold the nose to leave the new crease line.
第十步，展开尖端，留下新的折痕线。
Step 11, spread the folds apart to create a diamond shape.
第十一步，将折叠部分分开，形成菱形。
Step 12, fold the top part of the diamond down to meet the bottom point.
第十二步，将菱形的顶部向下折叠，与菱形底部相交。
Step 13, fold the right and left sides of the diamond back along the sides.
第十三步，将菱形左右两端分别沿两边折叠。
Step 14, fold the wings down, so they line up with the side points of the front diamond.
第十四步，折叠机翼，使其与之前菱形的侧面的点对齐。
Lastly, create winglets by folding down the top quarter inch of the wing tips.
最后，向下折叠机翼顶部四分之一英寸来创造小翼。
Tada! A bonafide sky king!
当当！真正的纸飞机王者！
Now, all that's left to do is play!
现在，就剩玩啦！
