Simma
abbr. scanning ion microscopy and micro-sectioning apparatus 扫描离子显微分析及显微磨片装置
🗣️ 情景例句
whom I think you've met once or twice before.
我想你以前见过他一两次面。
What did he answer you?
他回答了你什么？
After the alarm had been given, the great ship turned sharply to avoid a direct collision.
警报响过不久，巨轮急转弯，以避免与冰山正面相撞。