What's the name of this little tree? What's the name of that big tree?

1. Small trees are also called saplings. Before they grow into big trees, they should be transplanted and cultivated under unnatural growth conditions. First of all, we should plant seeds in the nursery and let them take root and sprout. This is the so-called sapling.

This big tree is called an umbrella. Regardless of the snowstorm, stick to your post, shelter the people from the wind and rain, like a warrior who is not afraid of risks to protect the people.