keannu
VIP Member
- Joined
- Dec 27, 2010
- Member Type
- Student or Learner
- Native Language
- Korean
- Home Country
- South Korea
- Current Location
- South Korea
What does this "smoke" in "smoke-tinted" mean?
is140
ex)...The process by which sunglasses have gained worldwide popularity is a fascinating one that began, surprisingly, in the justice system of medieval China. Dark glasses with smoke-tinted quartz lenses existed for centuries in China priot to 1430, but they were not used for sun protection...
is140
ex)...The process by which sunglasses have gained worldwide popularity is a fascinating one that began, surprisingly, in the justice system of medieval China. Dark glasses with smoke-tinted quartz lenses existed for centuries in China priot to 1430, but they were not used for sun protection...