Subocclusal keyway
[医] Ж下环状栓道
🧩 词语组成解析
n. 扁形钥孔, 键沟\\n[化] 键槽
🗣️ 情景例句
No, thanks.
不啦，谢谢。
The train is comfortable.
坐火车很舒服。
There are one hundred thousand million stars in our own Milky Way alone,
仅我们的银河系就有1000亿颗恒星，