Crotonylene
[化] 巴豆炔; 2-丁炔
??? 情景例句
Take off the veil,
拿掉面紗
My watch is fast and your watch is slow.
我的表快，而你的表慢。
We shall all remember Mr.Page for his patience and understanding and for the kindly encouragement he gave us when we went so unwillingly to school.
我們不會忘記佩奇先生對我們既有耐心又充滿理解，也不會忘記在我們不愿去上學時他給予我們的親切鼓勵。