Dental sac
[醫] 牙囊
?? 詞語組成解析
dental
['dentl]
adj. 牙齒的;牙科的;（輔音）齒音的;
n. 齒音;
sac
[s?k]
n. （動植物組織中的）囊，液囊;
abbr. 縮寫 = (US) Strategic Air Command 戰略空軍司令部。;
??? 情景例句
You may use a first name if you are asked to (call me …).
如果你得到允許的話，你便可以直呼某人的名字。
It won't fit; you'll have to go to the post office.
那不行，你必須去郵局才行。
Then I made faces and jumped like a monkey. The baby laughed and laughted.
然后我做鬼臉，像猴子一樣跳來跳去。那孩子笑個不停。