picosecond /'paikә,sekәnd/ 📖 中文释义 [计] 微微秒 🧩 词形变化 复数 picoseconds 📘 English Definition(英文释义) n. one trillionth (10^-12) of a second; one thousandth of a nanosecond ← picos P 字母词表 picoseconds →