I was watching 三体 ep2 and I came across this sentence 我这房子本来买了就是结婚用的 Why did they put 这房子 before 买了?
It is called [topic + comment] sentence structure.
[这房子] is the topic
[本来买了就是结婚用的] is the comment
- [SVO]:我來煮這頓飯 [S = 我; V = 來煮; O = 這頓飯]
I am cooking this meal
- [topic + comment]: 這頓飯我來煮 [topic = 這頓飯; comment = 我來煮]
This meal, I am cooking it
[topic + comment] structure emphasizes the object.