Mems
abbr. 微电子机械系统（Micro-electromechanical Systems）
🗣️ 情景例句
Challenge, the feeling of accomplishment, and knowing that you have made a contribution.
挑战，成就感和知道自己做出了贡献。
Do you ever do exercises on Saturday?
你曾经在星期六做练习吗？
because balloons can be a great danger to aircraft.
因为气球有可能给飞机造成极大的危险。