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A: How’s it going?
B: I’m fine, thank you.
A: Did you need help with something?
B: If I could, I would like to view the apartment sometime today.
A: That won’t be possible today.
B: Why is that?
A: You can only view the apartment with an appointment.
B: I would like to make one right now if I can.
A: Are you available this Friday?
B: Can we do it at 6 o’clock?
A: Your appointment for Friday at 6:00 pm has been confirmed.
B: All right. I’ll see you on Friday.
adj. 可用的，可得到的，有用的，有效的
