Permeametry
[机] 渗透测粒法
🗣️ 情景例句
Study hard kids, your mother and I want you to get into a good college when the time comes.
努力学习，孩子们，你们的妈妈和我希望你们能考上名校。
Constant dropping wears the stone.
滴水不绝可穿石。
Who won?
谁赢了？