Alkatriene
[化] 鏈三烯\\n[醫] 三烯烴
??? 情景例句
I hope to be able to join the school band.
我想加入學校的樂隊。
One ploughs, another sow; who will reap no one knows.
有的耕，有的播，誰來收獲很難說。
The albatross is the king of the gliders, the class of fliers which harness the air to their purpose, but must yield to its opposition.
信天翁是滑翔飛行的鳥類之王，它能自如地駕馭空氣，但必須順氣流飛行。