Pentamer
n. [化]五聚物, 五节聚化物
🗣️ 情景例句
What's that?
什么意思？
A great ship asks deep waters.
大船要走深水，蛟龙要在海中游。
A girl came in and put an envelope on his desk.
一个姑娘走了进来，把一个信封放在了他桌上。