滚瓜烂熟

72 封面图
中文拼音
gun3 gua1 lan4 shu2
中文繁体
滾瓜爛熟
英文翻译
lit. ripe as a melon that rolls from its vine (idiom); fig. to know fluently/to know sth inside-out/to know sth by heart
滚珠轴承gun3 zhu1 zhou2 cheng2 滚筒gun3 tong3