Olivanic acids
[化] 橄榄酸
🧩 词语组成解析
n. 酸, 酸类；有酸味的东西（acid的复数）
🗣️ 情景例句
Well, hi, all.
噢， 大家好。
I haven't seen you for age. You haven't been sick, have you?
好久不见。你不是病了吧？
Everyone knows that if he shouts in the vicinity of a wall or a mountainside, an echo will come back.
大家都知道，在墙壁或山腰附近发出的喊声，就会听到回声。