Yeats counterposes Isaiah's prophetic coal to the blazing body of Section IV, where fire is spontaneous, imminent, something that arises from the body.

叶芝将比赛亚的预言性的煤,和第五节里燃烧的身体相对照，这里火是自燃的，迫在眉睫的，是从人身体里升出的。

耶鲁公开课 - 现代诗歌课程节选

and ideally at some point coal, coal-fire power plants.

理想情况下，在某个时间点可能还会关闭煤炭以及燃煤电厂。

全球变暖与国力 - SpeakingMax英语口语达人

Burn coal to make it, catalytic decomposition of methane, you get the hydrogen, where does the carbon go?

通过烧煤得到，催化分解甲烷，可以得到氢，碳去哪儿了？

麻省理工公开课 - 固态化学导论课程节选

The iniquity of his lips must be burned off by a live angelic coal, that the sinfulness of his lips we could think of it as the sinfulness of his voice, his poetic voice -- will have to be purged.

他邪恶的嘴唇必定会被天国燃烧的煤块烧掉，他的嘴唇的罪孽,我们可以认为是他所说的话的罪孽，他的诗句必将被净化。

耶鲁公开课 - 弥尔顿课程节选

The Soul. Isaiah's coal, what more can man desire?

灵魂：你看这比赛亚的煤，人们还能期望什么东西？

耶鲁公开课 - 现代诗歌课程节选

When he was earnest in discourse, these shone, as it were, a bright- as if a bright live coal within it.

当他认真地在谈话，两只眼睛便闪闪发光，就好像明亮的燃烧着的煤块。

耶鲁公开课 - 政治哲学导论课程节选

In alluding to the prophet Isaiah in the prelude, Milton suggested that the iniquity of his lips had to be purged off -- burned off, with the live coal supplied by one of the seraphim.

弥尔顿在序曲中提到预言家艾赛亚，就是要表示他唇齿的邪恶,应该被净化，被其中一个，六翼天使用炭火烧掉。

耶鲁公开课 - 弥尔顿课程节选