catch the sun

1. 被曬黑
   You've really caught the sun today!

   你今天真的是曬黑了。

under the sun

1. 世界上
   I'm sure that he must have visited every country under the sun.

   我肯定他一定到過世界上的每一個國家。

• against the sun
  Nautical  against the direction of the sun's apparent movement (in the northern hemisphere); anticlockwise.
• shoot the sun
  Nautical  ascertain the altitude of the sun with a sextant in order to determine one's latitude.
• under the sun
  in existence.
• with the sun
  Nautical  in the direction of the sun's apparent movement (in the northern hemisphere); clockwise or from left to right.