Look at that smoke. That building must be on fire.

看那股烟，那座大楼肯定着火了。

youdao

Look at that smoke, that building must be on fire.

看那些烟，那幢大楼一定是失火了。

youdao

When I held up my hand, it, too, seemed to be on fire.

我抬起手来时，手仿佛也着火了。

youdao

"But still we will do our best." The four-star general also announced a unilateral cease-fire on election day, saying Afghan forces will only be on the defensive to prevent violence.

VOA: standard.2009.08.16

Minutes later, a second truck was reported to be on fire.

BBC: Mexico police find 17 burned bodies in two vehicles

By the next morning, my shoulder would be on fire.

NPR: Excerpt: 'Operation Homecoming'

That means he should have started by having the operation, getting through rehab and starting to train hard - that way he would be on fire at the beginning of the season when everyone else is tired from touring.

BBC: Jeremy Guscott column