as a matter of course造句

If police are carrying arms as a matter of course then doesn't it encourage criminals to carry them?
如果警察每天理所当然地携带武器,这难道不会促使罪犯也持械吗?

I lock the door as a matter of course.
我当然要把门锁上.

I check my in - tray every morning as a matter of course.
我照例每天早晨查看收文盘.

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