alexa-sdk response.listen(重新提示语音)

const Alexa = require('alexa-sdk');

const handlers = {
  'LaunchRequest': function () {
    this.emit(':ask', 'Welcome to my skill. How can I help you?', 'How can I help you?');
  },
  'MyIntent': function () {
    // 处理用户意图
    this.emit(':tell', 'Your response');
  },
  'Unhandled': function () {
    this.emit(':ask', 'Sorry, I didn\'t get that. Can you please repeat?', 'Can you please repeat?');
  }
};

exports.handler = function (event, context, callback) {
  const alexa = Alexa.handler(event, context, callback);
  alexa.registerHandlers(handlers);
  alexa.execute();
};