Definition
To temporarily take charge of a situation or place while the person who usually does so is away.
在某人不在時，暫時負責某事。
The manager is out today, so I have to hold down the fort at the office.
經理今天不在，所以我得在辦公室留守。
I have to work late tonight, can you hold down the fort with the kids?
我今晚得加班，你能幫忙照顧一下孩子嗎？
While the supervisor was at the conference, the assistant held down the fort in the office.
主管去參加會議時，助理在辦公室留守。