First, good words:

1, showdown: male and female: metaphor for winning or losing. Let's fight it out.

2, six out of chaos: six out: snowflake hexagon, because it is also called "six out." There is heavy snow.

3, thousands of arrows are worried: Um: gathering. Like a million arrows in my heart. Describe extreme pain.

4, eyeful: eyeful: the look of eyes. Under the supervision of everyone's gaze.

5, five winds and ten rains: once every five days, once every ten days. Describe the weather.

Second, good sentences:

1, in the days when we met, we had the most cherished friendship, and in the young years, we had the most sincere acquaintance, which is worth cherishing. Mountains can also block each other, but they can't block my thoughts. Distance can open the distance between you and me, but it can't open sincere friendship. Time can forget the past, but it can't forget forever friends.

We must not be complacent as soon as we see our achievements. We should restrain our complacency and criticize our shortcomings from time to time, as if we had to wash our faces and sweep the floor every day to clean up and dust off.

3, the whole body is furry, with two smart ears. Black as coffee. Run faster than the wind, wool tail, black pearl eyes. who is it? The puppy is not as cute as it is, and the cat hair is not as soft as it is. It's Pippi Rabbit.

I like all kinds of beautiful flowers. I am fascinated by dignified, warm and unrestrained roses; The elegance and delicacy of lotus flowers and the fragrance of Leng Yan fascinate me. I admire and respect the whiteness, purity and elegance of lilacs.

They are just a drop in the bucket in the ordinary campus, but with the help and care of the teachers, my campus life has become sweet, and the touch between teachers and students will inspire me to keep moving forward.

Content summary:

There have been many wonderful mathematical classics in history, which are just like the stars in the night sky, shining brightly, and all of them reflect the beauty of human wisdom and the beauty of harmony in nature. Until today, they are still warmly sought after by everyone.

Reading and thinking about these problems is the best way to enlighten mathematical thinking, cultivate hobbies and broaden knowledge horizons. This book will lead readers through time and space, and get in close contact with super brains such as mathematicians and physicists in history.

This book selects 28 topics, each of which shares the historical stories and anecdotes behind famous topics in the form of stories, and sets up similar examples for detailed explanation. Each issue also featured eight exercises for readers to train and groom horses.