Concealed ulcer
[医] 隐蔽性溃疡
🧩 词语组成解析
concealed
[[kən'si:ld]]
a. 隐蔽的, 隐匿的
ulcer
['ʌlsə]
n. <医>溃疡;腐烂物;道德败坏;
🗣️ 情景例句
Fine, Grandpa. Fine!
很好 ，爷爷， 很好！
The bus is bigger than other cars, but too crowded.
巴士虽然比小汽车大，但是太拥挤了。
I said I would be at your house at six o'clock, but the boss want me to do some extra work.
我说过我6点到你家，但老板要我加班。