Sdlc
[计] 同步数据链路控制规程
🗣️ 情景例句
Collecting matchsticks was fun, until that fateful day one of them caught alight.
收集火柴是一种乐趣，除非一天其中一根火柴不幸燃烧起来。
She's always helping people.
她总是帮助别人。[现在进行时]
Pollution is the price we pay for an overpopulated, over industrialized planet.
污染就是我们为这个人口过密，过度工业化的星球所付出的代价。