K-4:keep oneself to oneself 独来独往
A:I don't know why you keep yourself to yourself and refuse to be in touch with anyone.
A:我不知道你为什么老是独来独往，不愿跟别人联系。
B:I don't know. Once bitten, twice shy, maybe.
B：我不知道，也许是一朝被蛇咬，十年怕井绳的缘故吧。
A:People are different. I know you were so much hurt, but do cheer up. It's not the end of the world.
A:人和人不一样，我知道你伤得很深，但是要振作起来，还有希望的。
B:I know. But my sixth sense tells me to keep myself to myself for the time being. I need to relax a little bit.
B：我知道，但我的第六感觉告诉我应该暂时不与人接触，我需要放松一下。
