Nonadecendioic acid
[化] 十九碳烯二酸
🧩 词语组成解析
🗣️ 情景例句
Growing up without a mother is difficult.
在没有母亲的情况下长大不简单。
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。
CUSTOMS OFFICER: Are your friends tourists too?
你们的朋友也是来旅游的吗？