古时候有很多讲究，现在简单多了。 Here it means something needs to pay attention to. 你的意思是不太讲究了？ Here it means devoting particular care to something. 这句话怎么翻译很有讲究。 needs to carefully select words and think and think over again. 这个作家很讲究用词。 verb, careful study 这种点心做得十分讲究。 adj. nice, good.

讲究 means "think and do sth. very carefully, with some special methods"

think a long time and do something, that is 讲究, and really care about things, also 讲究, just like 穿衣服，