请问：be able to

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请问：be able to

请问：be able to
请问：be able to

请问：be able to
相当于can 能的意思 ,可用在现在时、完成时、将来时、过去时等多种时态中；而can 只能用在现在时和过去时中.

能够

就是"能够"的意思.

"能够"的意思 相当于can

相当于can 能够的意思

能

be able to 是能够的意思

请问：be able to 请问they have been able to do的时态是什么?been able to 和 be able to的区别是什么? be able to 用法 be able to中文 able to be assigned be able to be able to (送分拉) be able to 意思 be able to 和will be able to 的区别 be able to open it be able to 的用法 be able to的用法 be able to的词性 can could be able to be able to的用法 be able to 的用法 be able to do sth 用be able to造句