How come you didn’t tell me about this before?和How come they left you alone here!怎么理解这两个句
问题描述：
How come you didn’t tell me about this before?和How come they left you alone here!怎么理解这两个句
答
How come...? 怎么能...？怎么会...的？
How come you didn’t tell me about this before?你以前怎么会没有告诉我这件事的？
How come they left you alone here!他们怎么会把你一个人留在这里！
答
How come = Why
How come you didn’t tell me about this before?
你之前怎么没告诉我这个?
和How come they left you alone here!
他们为什么把你一个人扔在这儿!