Periodical disease
[医] 周期性疾病
🧩 词语组成解析
periodical
[,pɪrɪ'ɑdɪkl]
n. 期刊;杂志;
adj. 周期的，定期的;时常发生的;定期发行的，期刊的;
period 时期 + ical 表示“...的” → n. 期刊; a. 期刊的,定期出版的;周期的,定期的,时而发生的
🗣️ 情景例句
Don't lose sleep over it.
别因为这事儿睡不着觉。
What choice do I have?
我有什么选择吗？
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。