def translate(self):
     t = Translate()
     target = 'zh'
     plainText = self.plainEdit.toPlainText()
     if len(plainText) == 0:
         return
     else:
         # TODO 处理原始文本
         plainText = self.utils.processPlainText(plainText)
         translatedText = t.translated_content(plainText, target)
         self.translatedEdit.setText(translatedText)
         if self.settings.autoCopy:
             self.clipboard.setText(translatedText)
         else:
             pass