Cuprene
[化] 聚炔
🗣️ 情景例句
He came down with the flu, so he didn't go to work.
他感冒了，所以没去上班。
Have they developed a new method of transportation yet?
他们已经开发了新的运输方法了吗？
There had been fuel on the ship, but this did not appear to have caused the fire, and little smoke was produced.
很显然，船舱里已经发生了一场烈火，但是船舱内壁却完好无损。船上存放着汽油，但火灾似乎不是它引起的，因为没有冒出什么烟来。