marking  
noun uk/ˈmɑː.kɪŋ/ us/ˈmɑːr.kɪŋ/
  (PATTERN)         
  [ C usually plural ](动物身上的)斑点 
a pattern on the body of an animal
  There are a couple of fish with blue markings, and a few more with gold stripes down the side. 这有几条带蓝色斑点的鱼,那边还有几条带金色条纹的。 
  [ C usually plural ]标记;标识 
a mark that makes it possible to recognize something
  The army said the relief flight would be too dangerous as none of its helicopters had Red Cross markings. 军方说由于没有一架直升机带有红十字标识,所以救援飞行太危险。 
   (CORRECTING)      
  [ U ] UK批改;给…评分 
the activity of checking, correcting, and giving a mark to students' written work
  I couldn't go out with the others because I had a pile of marking to do. 我没法和其他人一起出去,因为我有一堆作业要批改。 
   (IN SPORTS)      
 [ U ](在球类比赛中)盯人 
the action of staying close to an opposing player in order to stop them from playing the ball
  Effective marking is often the key to a team's success. 有效的盯人通常是一只球队成功的原因。