1N-COUNT (人体内、尤指鼻内生长的)息肉 A polyp is a small unhealthy growth on a surface inside your body, especially inside your nose. (人体内、尤指鼻内生长的)息肉
It takes ten years or more for a benign polyp to turn malignant.
良性息肉转为恶性要经过10年或更长的时间。
2N-COUNT 水螅(体) A polyp is a small animal that lives in the sea. It has a hollow body like a tube and long parts called tentacles around its mouth. 水螅(体)