is his line meaning in English

搞建筑是他的本行architecture

He ' s never been known to carry a gun . smash and grab is his line
大家都知道他从不带枪，他专干打碎橱窗进店抢劫的事。
And mary and joseph come and joseph says i need a room for my wife . now is his line and he looked at mary , she was so pretty and she looked like she was in pain , and he felt so sorry for her because hed have to tell her theres no room
马利亚和约瑟来到，约瑟说他要和太太租用房间，这时他该说对白他看著漂亮的马利亚，但她看来很痛苦的样子，他替她感到十分难过，因为他要对她说：没有房间。