Idemfactor
n. [数]幂等矩阵, 等幂矩阵
🗣️ 情景例句
but he has to work today,
但他今天工作忙，
Without a friend the world is a wilderness.
没有朋友，世界就等于一片荒野。
Today we're going to have real English food.
今天我将领略地道的英国菜。