...when he came to now and again, ... (Para. 1)
Meaning: ...when he recovered consciousness now and again.
come to: This phrase is shortened from "come to oneself", which means "recover consciousness". When spoken, "to" should be stressed.
now and again: at times, sometimes.
This phrase has the same meaning as several other similar phrases: "every now and then" and "now and then".
n. 短语,习语,个人风格,乐句
vt. 措词