buy * in +
They bought in lots of salt.
buy into +
I never bought into the idea of my son marrying to her.
buy * off +
買通 (某人)；向 (某人) 行賄；用錢疏通
He bought the newspaper off by placing a lot of adverts.
buy * out +
Pacific Inc. was bought out by a company from Oregon.
His business partners bought him out to get rid of him.
buy * up +
We bought up all the beer in the store.
buzz around +
在 (某地) 跑來跑去地忙碌著；在 (某地) 忙來忙去
Reporters were buzzing around the scene of the accident.
I'm buzzing off now- I have to meet some people.
He told them to buzz off because they were annoying him.
Buzz off and stop bothering me!