保持微笑的英语表达有很多，以下是几个常用的：
1. Keep a positive attitude: This phrase means to have a positive and optimistic attitude towards life, even in difficult situations. It helps to maintain a positive mental image and can be a source of strength.
2. Take a deep breath: This phrase suggests taking a deep breath or breather to calm down and center yourself before responding or communicating. It can help to avoid emotions from building up and making you feel anxious or upset.
3. Be目中无人： This phrase means to not be interested in or pay attention to someone else, especially if they are not of your own gender. It can be used to express a sense of respect and non-judgmental towards others.
4. Let go of your worries: This phrase suggests letting go of any worries or concerns you may have about a situation or person. It helps to feel more relaxed and confident when you do so.
5. Ignore the negative comments: This phrase suggests not taking anything someone says to you personally or making a big deal of it. It can help to show that you do not care about what others think and can help to build stronger relationships with those around you.
In conclusion, there are many ways to express保持微笑 in English, and the key is to approach it with a positive and positive mindset. By keeping a positive attitude, taking a deep breath, being目中无人， letting go of your worries, andIgnore the negative comments, you can effectively maintain a smile and carry on with your life in a more positive and confident way.
