Permselective
选择性渗[穿]透的
🗣️ 情景例句
How much do you need?
你需要多少钱？
One way or a round trip ticket?
单程票还是双程票呢？
steam boats carried thousands of visitors across the Channel from Europe.
但汽船还是把成千上万的参观者从欧洲大陆送过了英吉利海峡。