block off

verb

(transitive) To obstruct. / To book, set aside (an unbroken period of time to do an activity).

The police blocked off the road after the accident.

意味（1）

(transitive) To obstruct.

The lorry is blocking off the road, so traffic has come to a standstill.

意味（2）

To book, set aside (an unbroken period of time to do an activity).

I'll need to block off a couple of weeks to refurnish my house.