work on sth.与work at sth.的含义是不同的。一、work on sth.的意思主要有: 1.从事(某工作),致力于(做某事) 1)Green is working on(busy writing)a new novel. 2)He took out a piece of chalk and wrote his problem on theblackboa...work on sth.与work at sth.的含义是不同的。一、work on sth.的意思主要有: 1.从事(某工作),致力于(做某事) 1)Green is working on(busy writing)a new novel. 2)He took out a piece of chalk and wrote his problem on theblackboard.Then started to work on it.展开更多
文摘work on sth.与work at sth.的含义是不同的。一、work on sth.的意思主要有: 1.从事(某工作),致力于(做某事) 1)Green is working on(busy writing)a new novel. 2)He took out a piece of chalk and wrote his problem on theblackboard.Then started to work on it.