Tetragonal system
[化] 四方晶系
🧩 词语组成解析
a. 四角形的
🗣️ 情景例句
Things here work very differently from back home.
这里的情况与你国家的情况有很多不同。
Don't touch it.
不要碰它。
Ships may be delayed by storms; flights may be cancelled because of bad weather, but trains must be on time.
轮船船期可能因风暴而推延，飞机航班可能因恶劣天气而取消，唯有火车必然是准点的。