后,他

after …, he

→ 后
phrase Rare #25,809
after …, he 后 follows an event to mean “after”; 他 means “he.”
CH: 我到家后,他给我打了电话。
EN: After I got home, he called me.

我把主意解释清楚后,他确信我找到了正确的办法。

After I explained my idea clearly, he was convinced I’d found the right approach.

医生被捕后,他的命运全改变了

After the doctor was arrested, his fate changed completely.

— 海德尔 (2014)

大卫不太明白我的意思,但我把学院里发生的事告诉他后,他立刻来了兴趣。

David didn’t quite understand what I meant, but once I told him what had happened at the college, he was immediately interested.

不然,这么多年后,他怎么会出现在我们的房子那儿

Otherwise, how could he have shown up at our house after all these years?

— 黑色的风采 (2005)

但是京子出生后,他就戒酒了

But after Kyoko was born, he quit drinking.

— 东京物语 (1953)