Praglit
插字
??? 情景例句
It is.
是的。
How about feed-back from your retailers and consumers?
你們的零售商和消費者的反映怎樣？
It must have been a gas that could burn but that would not explode, a gas that did not smell strong, and a gas that did not kill people.
它一定是一種能夠燃燒而不能爆炸的氣體，一種味道不很強的而且不使人致死的氣體。