Too much “loose talk” of war had already helped Iran, by driving up the price of oil.

要知道，对于开战他已说了太多“模棱两可”的话，石油价格因此不断攀高，可为我们伊朗帮了忙。

There’s been a bit of loose talk about it.

【loose，looseness】对这件事有些不负责任的话。

There's a lot of loose talk about how stress affects the body, and you're right: Thaiss and his team did go after this more scientifically.

有很多关于压力如何影响身体的松散讨论，你是对的：Thaiss和他的团队确实更科学地追求了这一点。