Placcntal barrier
[医] 胎盘障壁
🧩 词语组成解析
🗣️ 情景例句
During our stay in London, we visited Buckingham Place.
我们在伦敦逗留期间参观了白金汉宫。
Excuse me, would you give me a hand?
对不起，你能帮我个忙吗？
Oil rigs have to be repaired frequently and divers,who often have to work in darkness a hundred feet under water,
钻井平台需要经常修理，潜水员常常要在水面100英尺以下摸黑工作，