Aphthous ulcer
[医] 口疮性溃疡
🧩 词语组成解析
[医] 口疮的
ulcer
['ʌlsə]
n. <医>溃疡;腐烂物;道德败坏;
🗣️ 情景例句
Whatever you decide is all right with me.
不管你怎么决定我都会赞成的。
Please keep the cartons to 15kg each and metal-strap all cartons in stacks of 4.
请将每个纸箱重量限制在15公斤内，并将每4箱一组用铁条儿固定起来。
He quickly became the leader.
他很快就成了领袖。