crabbing       
noun [ U ] uk/ˈkræb.ɪŋ/ us/ˈkræb.ɪŋ/
 捉螃蟹
the activity of trying to catch crabs (= sea creatures with five pairs of legs and a round, flat body covered by a shell), either as a job or for pleasure
  He has been making a living from crabbing for 24 years. 24年来,他一直以捕蟹为生。 
 We showed her where we used to go crabbing as children. 我们指给她看我们小时候经常去捉螃蟹的地方。 
 - More examples
 - Fishing or crabbing near the island is banned.
 - Local tourist shops sell nets for crabbing.
 - Crabbing was the most popular sport and bait and nets were for sale everywhere.
 - Environmentalists and commercial fishermen often disagree on fishing and crabbing limits, but they agree on the need for clean water.