Many American proverbs stress the value of guarding time, using it wisely, and setting and working toward specific goals.

许多美国谚语强调了守时的价值，明智的使用、设定时间，朝着指定的目标努力。

So, you have to guard your time and try to say a little bit flexible.

所以，你要把握好自己的时间， 尽量说得灵活一点。