稀薄thin

• 淡溶液

  dilute solution

• 淡墨

  light ink

• 牛奶很淡。

  The milk is very thin.

味道不浓；不咸weak; not salty

• 淡茶

  weak tea

• 汤淡

  light soup

颜色浅pale

• 淡褐色的头发

  light brown hair

• 颜色似乎淡了一些。

  The colour seems a little dull.

冷淡indifferent

• 淡于名利

  indifferent to fame and fortune

• 淡淡地答应了一声

  make an indifferent response

生意清淡slack

无关紧要insignificant