After the marathon, most of the competitors looked all in.
跑完马拉松,大多数参加比赛的人显得疲劳不堪。
People do not lack strength; they lack will.
人们不缺力量,缺的是决心。
Some of the bigger firms are engaged in researches which are of such general and fundamental nature that it is a positive advantage to them not to keep them secret.