单词	凝胶前驱物
释义	凝胶前驱物gel precursor
随便看	american film festival american film institute american film market american film market association american filter american flag sort american folk ballet american foot ball american football american football league 美国橄榄球联盟 american foreign insurance association american foreign insurance association {= afia} american fork r. american fossil resin american foxhound american fried potatoes american friends service committee american fries american fringe tree american fustic chittam american fustic chittam (cotinus americana american fustic chittam (cotinus americana， nutt.) american gas association american gas association (aga) american gas association {=aga}