BS

I received a BS in chemistry at Dartmouth.

我获得了达特茅斯学院的化学理学学士学位。

A lot of what he´s been hearing from the federal government is BS.

他从联邦政府那儿听来的很多东西都是胡说八道。

Accustomed to seeing As and Bs on high school report cards, they may be upset when their children´s first semester college grades are below that level.

他们习惯于在孩子的高中成绩单上看到 A 和 B，所以当他们的孩子大学第一学期的成绩低于这个水平时，他们可能会感到不安。

Accustomed to seeing As and Bs on high school report cards, they may be upset when their children´s first-semester college grades are below that level.

他们习惯于在孩子的高中成绩单上看到 A 和 B，所以当他们的孩子大学第一学期的成绩低于这个水平时，他们可能会感到不安。

We use bispyribac-sodium (BS) as a selection agent.

我们以双草醚钠作为筛选剂。