And it turns out it's actually quite flammable. A hydrogen flame is very, very hot, but invisible.

而且，事实表明，氢气非常易燃，氢火焰极为炽热，但却是无形的。

youdao

As if the water, sharks, crocodiles and other threats weren't enough, a flammable gas leak caused further chaos there recently, leading to even more evacuations.

好像只有洪水、鲨鱼、鳄鱼及其他威胁还不够热闹，最近一次可燃性气体泄漏导致的爆炸让这里更有混乱，许多人也因此需要疏散。

youdao

Methane is a colorless, odorless and flammable substance which forms a major component in natural gas.

甲烷是一种无色，无味，易燃物质，是天然气的重要组成部分。

youdao

Yet even if either side (or both) is overstating the case, the Caucasus is too flammable a place to be ignored.

ECONOMIST: Tension grows over Abkhazia

The police watchdog is investigating whether a Taser electric stun gun ignited a flammable liquid which caused a man to be fatally burned.

BBC: Andrew Pimlott

DeGeorge told officials he suspected the explosion was caused either by "hit men" working for the opposite side in a hotly disputed case he was litigating--a "suspicious-looking fishing boat" had circled his yacht, he said--or by the negligence of a repairman who left flammable material near a stove.

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