think seriously about sth是认真考虑某事物
举一反三
- muse about/on/over/upon sth A: to reflect deeply on sth B: to talk a lot about sth C: to think casually of sth
- think about后面应该接动词的to do形式，表示考虑做某事。
- on doing sth是做某事
- refuse to do sth是拒绝做某事
- Coaches have a way of running you until you are too tired to think of anything else. 此句中 have a way of doing sth 意为“(某事)经常会(总是)以某种形式发生”。