She even had plastic surgery to change the shapeof her nose.
她甚至做过整形手术来改变鼻子的形状。
《柯林斯英汉双解大词典》
2
The idea is that every odor molecule that enters our nose has a specific shape that fits a specific receptor-like a key fits a lock-allowing us to detect, say, the acrid aroma of burnt coffee.