Ridley's sinus
[医] 里德利氏窦, 环状窦
🧩 词语组成解析
n. 窦, 静脉窦, 凹陷处
🗣️ 情景例句
No smile, no surprise.
不笑 ，就没有惊喜。
If you consider that she's only been studying English a year, she speaks it very well.
你可以考虑到她那学一年的英语，她的英语说得非常好。
Last Sunday we had a picnic.
上星期天我们去效游。