他正专注于自己的思绪。

He is focused on his own ___thoughts.

他坐在公园的长椅上，沉浸在关于人生的思考中。

He sat on the park bench, lost in ___thoughts about life.

他的演讲引发了我对未来的许多思考。

His speech triggered many ___thoughts about the future in my mind.

即使在繁忙的工作中，他也时刻把病人的健康放在心上。

Even during busy work hours, he always keeps his patients' well-being in his ___thoughts.