1、likely, probable与possible
① 三者均表可能性， 但意思上有一点点区别。possible指客观上有可能性， 但往往含有希望很小的意思；probable比possible可能性大， 表“很有可能， 大概”， 指有实际依据或逻辑上的合情合理；likely是从外表迹象进行判断有可能发生的事。
It is possible, though not probable, that he will come tomorrow. 他明天可能来， 但也不一定准会来。
The probable cause of his failure was that he had been too tired. 他失败大概是太累了的原因。
She's very likely to ring me tonight.
