英语语法分析

If the worst comes to the worst, use the portable annihilator in your helmet.

如果最坏的最坏的情况下，使用便携式零化子您头盔。

It leaves no trace after fire extinguishing. It replaces for alkylogen annihilator.

灭火后不留痕迹，是取代卤代烷灭火器的替代品。

See this condition, Mr. Liu immediately goes fetch annihilator and soon put out fire.

见到这种情况，刘先生立即拿来灭火器，很快将火扑灭了。