Strata lemnisci
[医] 丘系层
🧩 词语组成解析
strata
['streitə]
n. 地层;岩层( stratum的名词复数 );地层;社会阶层;
n. 蹄系, 丘系( lemniscus的名词复数 ); [医]丘系； 吻腺
🗣️ 情景例句
There's so much for young people to see and do.
这里有很多可供年轻人看和做的事情。
What were you doing at about 4 o'clock yesterday afternoon?
你昨天下午在大约4点钟正在做什么？
This is done by a great number of ring-shaped air jets on the bottom of the craft.
船底装上大量环状喷气嘴以实现这一目的。