Alkane
[ ['ælkein] ]
高中 Senior High
[化] 烷烃; 链烷烃\\n[医] 烷属烃
🗣️ 情景例句
Please wait for me. I won't be long.
清等等我，就一会儿。
Waste of time is the most extravagant and costly of all expenses.
浪费时间是一切花费中最奢侈豪华的费用。
Yes, I am.
对，我是在第四排。