尽管面临挑战，两种登革候选疫苗已在登革热流行国家进行后期临床评价，一些其他候选疫苗尚处在较为初级的开发阶段。

Despite these challenges, two vaccine candidates have advanced to evaluation in human subjects in countries with endemic disease, and several potential vaccines are in earlier stages of development.

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戈登：枪？尚伟，我是个情圣，不是战士。我意思是要一块蛋糕，我很饿。

Gordon: Gun? I'm a lover not a fighter Shawn. I mean I need a piece of cake. I'm starving.

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尚伟：噢，莉莎家人已经支付婚礼开支了，戈登当然不会错过这个免费大吃的机会。

Shawn: Well, Lisa's family paid for the wedding and Gordon's never been one to give up a free meal.

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