Ufcs
abbr. Underwater Fire Control System 水下发射控制系统
🗣️ 情景例句
I'd like to check this book out.
我想借这本书。
Familiar paths and old friends are the best.
熟路好遵循，老友最可珍。
Only the Earth provides ideal conditions, and even here it has taken more than four billion years for plant and animal life to evolve.
只有地球提供理想的条件，而即使在这里，植物和动物的进化也用了40亿年的时间。