Ecrustaceous
无壳质的
🗣️ 情景例句
Your room number is 512. Here's your key.
房间号码是512。这是您的钥匙。
The cheque will be cleared in about three days.
大概在3天后，支票就可以兑现了。
Nearly all the sports practised nowadays are competitive.
现在开展的体育运动几乎都是竞争性的。