Sec.-amyl acetate
[化] 乙酸仲戊酯
🧩 词语组成解析
n. 戊基\\n[化] 戊基
n. 醋酸盐\\n[化] 醋酸盐(或酯、根)
🗣️ 情景例句
What does John do?
John现在做什么事？
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。
7 p.m. Will you be free then?
晚上7点。那时你有空吗？