Take "smile" as the topic. Use respectively: metaphor, personification, exaggeration and duality. Write a composition topic for each rhetorical device.

-smile, it consumes nothing for physical strength, but gains a lot for the mind. Smile, you have nothing to lose to yourself, but a lot to others. Smiling will not make life lose anything, but will add a lot of color to life. Everyone has their own difficulties, some can tell others, some can only bear it silently, some will be noticed by people who care about you, and some others will never understand. -Has anyone ever complained like this? I often visit others, why don't others visit me? They always blame me for not doing enough interviews. Why don't they blame themselves for not visiting others more? It can be seen that watching others is always happy, and only oneself is unfortunate and painful. I wonder if others think so? Since everyone has their own difficulties, don't deliberately ask others to care about me, understand me, love me and help me. It is better to face the reality, face it calmly and smile at life. In the face of dissatisfaction and dissatisfaction, laugh it off. This slight smile will make you relax and bring great comfort to your once painful heart. Can you believe it? You try, as long as you sincerely smile, your troubled heart and painful spirit will be relieved and relaxed in an instant. It seems to be a lubricant, which will moisten and heal the injured. -As the saying goes? Every family has a difficult song to sing. When you complain about your bad luck and envy others, maybe he is complaining about his bad luck and envious of you? Don't ask others to care about the sufferings in our hearts, but care about ourselves. We can laugh at grievances with the wind, and we don't have to worry about success or failure. But for the difficulties and pains of others, we should give them cordial care and sincere smile. When others are frustrated, lonely, sad and painful, such a sincere, trusting and caring smile can give them confidence, strength, comfort and encouragement, let the frozen heart feel moved, let the cold heart feel warm and let the lonely heart find a harbor. -I don't remember who said that. There will always be some setbacks in life, so you should learn to bear them silently. In fact, a person who is good at smiling can resolve many of his own setbacks because of smiling, and a person who is good at smiling can also resolve many others' setbacks. We know that setbacks are not terrible, but the death of the soul is really terrible, and a smile is a good medicine to cure the death of one's own soul. The Bible says? "A happy heart is a good medicine." Only happy people will show sincere smiles. This kind of smile can also heal the premature death of others and rekindle a dead heart. If everyone can smile sincerely, the world will be as beautiful as it is said. Because the world is full of smiles like flowers. -Let's recall the words of the Apostle Paul? Always happy. Let's practice happiness and smile sincerely.