s. made or having become thicks. made thick in consistency
v. （使）变厚（或粗、浓、密）, 使更厚（或更密、更浓、更粗）( thicken的过去式和过去分词 ); 使（话等）不清晰, 使模糊; 使（情节等）复杂; 变得不清晰, 变得模糊