Aphthous ulitis
[医] 口疮性龈炎
🧩 词语组成解析
[医] 口疮的
龈炎
🗣️ 情景例句
We're in luck.
我们运气好。
Dogs wave their tails not so much in, love to you as your bread.
狗摇尾巴，爱的是你的面包。
At a special swimming pool in Los Angeles, children become expert at holding their breath under water even before they can walk.
在洛杉矶的一个特设的游泳池里，孩子们甚至在还没有学会走路时就已经能熟练地在水下屏住呼吸了。