Definition: available for business or serving customers Level: A1
超市营业到晚上10点。
The supermarket is ___open until 10:00 p.m.
我们的电话线路开放到中部时间晚上9点。
Our phone lines are ___open until 9 p.m. Central Time.
他们全天24小时营业。
They are ___open all day and all night.
