Pentadecane
[机] 十五烷
🗣️ 情景例句
You can listen to BBC or VOA news if you want to improve your listening.
如果你想提高听力，你可以听英国广播电台或美国之音的新闻节目。
There's just one last favor I need to ask of you.
我需要问你的最后一件好事只有一个。
from which can be seen the strata the drill has been cutting through.
从中能看出钻头所钻透的地层。