1. appointment
Do you have an appointment?
你约好了吗？
I have an appointment with the dentist this afternoon.
我今天下午预约了牙医。
I've got to go now; I have an appointment.
我得走了，我有约会。
2. urgent
Is it urgent?
急吗？
Listen, it's an urgent message.
听着，这是一条很紧急的信息。
It's too urgent to wait.
事情急，不能再等了。
3. till
Can't you wait till this afternoon?
您就不能等到今天下午了吗？
I watched TV till eleven last night.
昨晚我看电视一直看到十一点。
Wait till I come back.
等到我回来。
编辑推荐：
新东方新概念英语
新概念英语网校
新概念英语辅导
