1. bullheaded顽固，牛脾气

Terry is so bullheaded; he won’t listen to anybody else’s opinion.

特利这么顽固，他听不进别人的意见。

2. bum rap责骂

Louise got a bum rap for taking sides with Richard.

路易斯因为偏袒理查德而受到责骂。

1. bummer令人恶心的经历

That show was a real bummer.

那场表演令人倒尽胃口。

2. burn someone up激怒某人

It burns me up when people don’t do their job right.

有人没把份内的事做好就令我生气。

3. catch on to突然了解

It took Cindy a long time to catch on to what Bill was saying.

辛迪许久以后才突然明白比尔所说的话。