To say something is to perform an action, and to perform an action is to do something with words.
我们可能变老了,但音乐让我们保持年轻的心。
The most exciting breakthroughs often come from interdisciplinary research.
我对菲律宾——我从那里过来——的人民说过,我会回来的。今夜,我再说一遍那句话:我会回来的!
亲戚都不归附,也就不要对外办交际。