1·Retailers must hope that the public will be as enthusiastic about such products when they have to pay for them as the audience was when getting them free.
零售商一定希望当公众要为他们这些产品埋单的时候，他们依然热情，就好像他们免费获得这些产品的时候。
2·If you know your partner has someone waiting in the wings, it's hard to be motivated to work on your relationship, or to be enthusiastic about it.
如果你知道你的另一半有别的人在翘首以待，确实是很难让你经营这段感情或是对它抱有热情。
3·She’s just as enthusiastic about raiding my wallet for coins to put in the charity collection can in her classroom.
她以同样热情洗劫了我钱包里的硬币，然后喂给了班上的慈善募捐箱。
4·Young people are enthusiastic about entrepreneurship.
年轻人的创业热情很高。
5·She was so enthusiastic about it that I felt compelled to try it immediately.
她满腔热情，让我感到自己被迫立即进行实践。