🧩 词语组成解析
epithelial
[ˌepɪ'θi:lɪrl]
adj. 上皮的，皮膜的;
duct
[dʌkt]
n. 管，导管;（电线，电缆等的）管道;
vt. 用导管输送;用管道供应;
🗣️ 情景例句
How are you?
你好吗？
What? Already? Won't you have more coffee?
怎么，已经要走了？要不要再喝点咖啡？
He turned to the police officer.
他转过身对警官说