Triacid
a. 三(酸)价的
🗣️ 情景例句
She has the ability to speak English fluently.
她能够流利地说英语。
Children enter primary school at the age of 7.
孩子们7岁进小学。
Apparently what happened was that water collected on these tar pits, and the bigger animals like the elephants ventured out on to the apparently firm surface to drink, and were promptly bogged in the tar.
沥青坑里积存了水，大象那样的大动物冒险到似乎坚固的水面上去饮水，立即掉进了沥青坑。