B Before that, San Francisco.

B在那之前，我在旧金山。

youdao

B Before I had my children, I was a teacher.

B在我有孩子以前，我是一个老师。

youdao

B Before I came to Beijing, I worked in Shanghai.

B在来北京之前，我在上海工作。

youdao

He went on to become a sought-after studio musician, working alongside a steady stream of pop and R&B greats, before landing a solo recording contract in 1992.

VOA: standard.2010.04.12

I quote in here a guy who croaks before this course starts, Jean Bodin, B-O-D-I-N.

在这儿我引用一位逝者提出的观点,金博丹

耶鲁公开课 - 欧洲文明课程节选

Hesiod, whom I have not mentioned to you before, a poet who we think to have lived around 700 B.C., very early in the history of the polis, wrote one of his poems called, Works and Days.

赫西奥德,我之前跟你们提到过的,是一个生活在公元七百年左右的诗人,那还是在城邦历史的初期,创作了一首名为《工作与时日》的诗歌

耶鲁公开课 - 古希腊历史简介课程节选

There's no point getting panicked into Plan B before you've given Plan A everything you've got.

BBC: Bank and Treasury's plan A-plus for UK

You'll need to have a skin test for tuberculosis, a chest X-ray and a test for hepatitis B before taking infliximab.

CNN: Ulcerative colitis

Biogen went on to create one of the first treatments for hepatitis C and the vaccine given for hepatitis B before becoming a dominant player in treating multiple sclerosis.

FORBES: Biotech's Comeback Kid