1. I will phone him up tomorrow.
我明天会给他打电话。
2. She phoned up the hotel to book a room.
她给酒店打了电话预订房间。
3. Why didn't you phone me up?
你为什么没给我打电话呢？

A: Did you phone up the doctor?
A：你给医生打电话了吗？

B: Yes, I phoned him up this morning.
B：是的，我今天早上给他打了电话。

1) 给某人打电话

2) 通过电话联系某人

1. 给某人打电话

e.g.
He phoned up his friend to invite him to the party.
他给朋友打了电话邀请他参加聚会。

phrasal verb

1. to call someone on the telephone

Synonym: call up, ring up