hadbest

例句：

1. 1. He had best not go there alone.
   他最好不要单独去那里。
2. 2. Shehad best be careful whencrossing the street.
   她过马路时最好小心点。
3. 3. Thebest way to solve thisproblem is by discussing it withyour colleagues.
   解决这个问题的最好方法是与你的同事讨论。