Gas flowing through the pipes burns instantly but can be kept under control easily by opening or closing the pipes.
通过管子的煤气会瞬间燃烧起来, 但我们凭开、关管道很容易控制它。
The poor girl was dismissed instantly.
这个可怜的姑娘被当即解雇。
It's an instantly recognizable face.
那是我一眼就能认得出的面孔。
