at his door

• adv. 在附近(在跟前；靠近)

at his door的用法和样例：

例句

1. Mr Smith can get to work in only a few minutes because the subway is at his door.
   史密斯先生去上班只需几分钟，因为地铁就在他家附近。
2. The failure of the plan was laid at his door.
   这个计划失败被归罪于他。