VOA慢速英语:Infinitives in Everyday Speech

短语讲解：

1. You would never be able to memorize all of them!

be able to 能够; 能，会
例句：They may be able to help with childcare so that you can have a break
他们可以帮忙照料孩子，这样你就可以歇一歇了。

2. But as you have heard, English speakers will leave out the subject when the meaning is clear.

leave out 遗漏; 省略; 未顾及
例句：You can leave out the parts of the story that are not interesting.
你可以把故事中无趣的部分省略。