be unable to do与be not able to do有什么区别
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/30 22:18:31
![be unable to do与be not able to do有什么区别](/uploads/image/z/7465685-5-5.jpg?t=be+unable+to+do%E4%B8%8Ebe+not+able+to+do%E6%9C%89%E4%BB%80%E4%B9%88%E5%8C%BA%E5%88%AB)
be unable to do与be not able to do有什么区别
be unable to do与be not able to do有什么区别
be unable to do与be not able to do有什么区别
语义没有区别,但感觉“be unable to”表达否定意思比较自然一点.而“be able to”就专门用于肯定意思好了.