单词：dry-chemical extinguisher
单词：dry-chemical extinguisher 相关文章
We attended the wedding of an acquaintance's son. Because we did not know the young man or his bride, we decided to send them a practical household gift, a fire extinguisher. Apparently, the couple ma
英汉幽默故事选读
This is Whats Trending Today Elon Musk - head of electric carmaker Tesla and aerospace company SpaceX - is known for using creative methods to raise money for his businesses. He has successfully gotten tens of thousands of interested buyers to place
2018年VOA慢速英语(二)月
On this Labor Day, there are two things I want you to know. Number one, I am going to keep fighting every single day, every single hour, every single minute, to turn this economy around and put people back to work and renew the American Dream, not ju
CNN2010年(九)月
This is Scientific Americans 60-Second Science, I am Cynthia Graber .This will just take a minute. How can we improve engines, inhalers and fire extinguishers? Maybe by copying a beetle. The bombardier beetle's name might scare off predators if they
Scientific American(四)月
Follow your common sense You cannot hide yourself behind a fairytale forever and ever Only by revealing the hole truth can we disclose The soul of this bulwark forever and ever Forever and ever Indoctrinated minds so very often Contain sick thoughts
英文摇滚歌曲
介绍: smog 雾霾 mask 口罩、面膜 A mask is an object normally worn on the face, typically for protection, disguise（伪装）, performance, or entertainment. gas mask 防毒面 oxygen mask 氧气面罩 air purifier /?pj?r?fa??r/ 空气净化器
英语俚语天天说