Parametrix
拟基本解奇异函数
🗣️ 情景例句
There's nothing wrong with hard work.
刻苦没错。
You can't make bricks without straw.
没有稻草，制砖难搞。
Frank gently lifted the crockery out of the box an suddenly noticed a miniature painting at the bottom of the packing case.
弗兰克轻轻地把陶器拿出箱子，突然发现在箱底有一幅微型画，