a short and intensive course of study
短期强化学习课程 (duanqi qianghua xuexi kecheng)
"I had to take a crash course in programming before starting the job."
"在开始工作之前,我不得不参加一个编程速成课程。" (zai kaishi gongzuo zhiqian, wo bude bu canjia yige biancheng sucheng kecheng)
it's not difficult to understand
someone who has similar interests or feelings
to face an unexpected problem or obstacle
to have a lot of tasks or responsibilities to deal with
to create or develop trust in a relationship
to not tell others what someone has told you in confidence