Tricyclene
三環烯, 三環萜
??? 情景例句
Thanks, no. I do have to go.
謝謝了， 不用。我真的得走了。
Great painter
偉大的畫家
As quickly as they could, the men ran to th steps and up into the open, many of them with their clothes on fire.
工人們盡快朝樓梯跑去，爬上樓梯跑出艙外，其中好多人衣服已經著火了。