Echinus
n. 海胆
🗣️ 情景例句
Weight: eight pounds six ounces.
体重： 八磅六盎司。
According to the latest census,our population has increased.
根据最近的人口普查，我们的人口增加了。
There are lots of huge buildings in Beijing.
在北京有许多高大的建筑物。