For example, this tree is really thick, ———————————.
Then we must find the key word: rough
I'll make up: it's not difficult to have several adults around
It's not difficult to imitate writing
Knowledge is a cloud. Knowledge is rain, gathering into a vast sea;
We should grasp the key point of this sentence: what is knowledge and how it is
That's it
Knowledge is the sea, which holds up the boat of dreams; Knowledge is a ship, which takes you sailing in the wind.