as best one can

1. 尽最大努力
   Do it as best you can.

   尽力把它做好。

at best

1. 至多；充其量
   At best we can do only half as much as last year.

   我们至多只能做到去年的一半。

at one's best

1. 处在最佳状态
   The garden is at its best this month.

   这个月花园里的景色最美。

do one's (level) best

1. 全力以赴
   He did his level best to reach the station before the train left.

   他拼命地赶在火车开出之前到达车站。

get/have the best of

1. 击败
   After a long struggle, we got the best of them.

   经过一番苦斗，我们打败了他们。

in one's (Sunday) best

1. 穿着节日盛装
   They were in their Sunday best for the wedding.

   他们盛装参加婚礼。

make the best of

1. 充分利用
   He made the best of himself.

   他充分发挥自己的水平。

the best of both worlds

1. 两者之优点
   He lives on a farm and works in a big city in order to have the best of both worlds.

   他住在农庄而在大城市工作，以便享有两者之优点。

to the best of one's ability

1. 就自己能力所及
   I will do the work to the best of my ability.

   我会尽全力把工作做好。

with the best

1. 不比任何人差
   Although he's nearly fifty, he can still play tennis with the best.

   尽管他已年近五十，可是他网球还是打得不比别人差。

• all the best
  best wishes.
• at best
  taking the most optimistic view.
• be for the best
  be desirable in the end, although not at first seeming so.
• best of breed
  the animal in a show judged to be the best representative of its breed.
  ▸any item or product considered to be the best of its kind.
• the best of three (or five etc.)
  victory achieved by winning the majority of a specified odd number of games.
• the best part of
  most of.
• best wishes
  an expression of hope for someone's future happiness.
• get the best of
  overcome (someone).
• give someone/thing best
  Brit. admit the superiority of someone or something.
• had best
  would find it most sensible.
• make the best of
  derive what limited advantage one can from (something unsatisfactory).
• six of the best
  Brit. a caning as a punishment, traditionally with six strokes of the cane.