Softifume
烟砂(氰化钠、 氯酸钠和砂的混合物)
🗣️ 情景例句
Have you ever done any work in this field?
你曾经干过这一行吗？
A new bicycle is out of the question - we can't afford it.
买新自行车的事谈不上 —— 我们买不起。
Insects would make it impossible for us to live in the world;
要不是人类受一些食虫动物的保护，昆虫就会使我们无法在地球上生活下去，