Intraepithelial
a. 上皮内的
🗣️ 情景例句
How was your interview with Michigan?
你跟Michigan大学的人面谈得如何？
How much is it by air mail?
航空信要多少钱？
later, we shall undergo a progressive loss of our vigour and resistance which, though imperceptible at first,
再迟一些，我们就要经历生命力和抵抗力逐步衰退的过程。虽然这个过程起初难以觉察，