Maxillary buccal frenum
[医] 上颌颊系带
🧩 词语组成解析
a. 颌的, 上颌骨的\\nn. 上颌骨
a. 颊的, 口的, 口腔的\\n[医] 颊的
n. 系带\\n[医] 系带
🗣️ 情景例句
There has been very little progress this term.
这学期没有什么进步。
To race
竞争
Though the sound could be heard clearly, it took me a long time to react.
虽然声音听得很清楚，但我过了好一会儿才作出反应。