The substance has been scheduled as a poison.

这种物质已被列为毒物。

《牛津词典》

The substance polymerizes to form a hard plastic.

这种物质聚合形成坚硬的塑料。

《牛津词典》

Love and guilt form the substance of his new book.

他的新书主要讲爱情与罪孽。

《牛津词典》

After talks on Wednesday, France's ambassador said they were starting to negotiate on the substance of possible new measures.

VOA: special.2010.04.17

If you have a large number of atoms in an aggregate, it is going to require that the substance turn solid and condense at room temperature.

如果有很多原子进行聚集，在室温下,会使的物质转变成固体状态。

麻省理工公开课 - 固态化学导论课程节选

There's 60 people in the dorm, and I'm in the substance-free zone.

宿舍有60个人，我在无饮酒区。

布朗的宿舍公寓 - SpeakingMax英语口语达人

The substance he abused: Bakelite, a phenolic resin invented in 1909 and often used as an electrical insulator.

FORBES: They've Gotta Have It

All five were said to have suffered serious side effects after taking the substance on Sunday.

BBC: Humberside

On the substance, the rhetoric was more cautious -- even subdued for the most part.

CNN: John King: Sounding off on Sotomayor