Pertest
percolation test(ing) 渗透试验
🗣️ 情景例句
This food is heavenly, isn't it?
这一顿太美好了， 是吗？
You have my word.
我向你保证。
Let's go and see the pandas. I hear one of them has a baby.
咱们去看看熊猫吧。我听说有一只熊猫生了只小熊猫。