Meri
abbr. matrix effective refractive index (method) 矩阵（变换）有效折射率（法）
🗣️ 情景例句
That's a great idea.
真是个好主意。
Truth is honest, truth is sure; Truth is strong and must endure.
真理不会骗人，切实无假；真理的力量强大，永存不垮。
he answered me, but he spoke neither slowly nor clearly.
他回答了，但他讲得既不慢也不清楚。