And others, called reducers, lose them.

而还则会失去电子。

We decided to try another reducing agent, vitamin C.

我们决定试试另一种还——他命 C。

We saw that just like the other reducing agent, it in combination with isoniazid sterilized the culture.

我们看它跟另一种还相同，跟异烟肼一道将胞灭活。

Like, in this case, it connects the hydrogen sulfide reducers in anoxic sediment with oxidizers closer to the surface.

同样，在种情况下，它将缺氧沉积物中的硫化氢还与靠近表面的氧化连接起来。

The important thing is that developers include reducing agents: chemicals that generally donate electrons to other compounds during a chemical reaction.

重点是显影里包含还，它能在化学反应中给其他化合物提供电子。

Jacobs was studying whether the TB drug isoniazid was being inactivated by the presence of a particular amino acid, cysteine, which in chemical terms acts as a reducing agent, by donating electrons.

Jacobs 之前一直研究为何肺结核药物异烟肼会被氨基酸和半胱氨酸灭活，而异烟肼在化学反应中通过失电子，起还的作用。