Sems
(sem 的复数) abbr. 标准电子组件（Standard Electronic Modules）；扫瞄式电子显微镜（scanning electron microscope）
🗣️ 情景例句
I think I know you. Aren't you...?
我觉得我认识你。你是……吗？
I'm no match for him.
我根本不是他的对手。
I get to school at about 7:30 every day.
我每天七点半到校。