[请益] have to be Ving

楼主: ssswxwx (亨利李)   2016-03-11 15:50:39
影片里面的一段话
Rather than just taking in by watching or by listening , you actually have to be putting effort from your side into learning that language.
想请教大家为什么不是用have to put …就好
意思上面有什么不同吗 谢谢
作者: donvito (CryFather)   2016-03-11 17:46:00
表达持续的状态

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