Durchgriff
渗透系数, (栅板)穿透率
🗣️ 情景例句
The longer the words the better.
单词越长越好。
It's about time to get up.
差不多该起床了。
It's Tree Planting Day. We're going to plant trees in the park along the lake.
明天是植树节。我们要去公园/沿着湖边种树。