Undersole
大底, 鞋底
🗣️ 情景例句
OK. I understand. Thank you.
好吧，我懂了，谢谢你。
I was born in Spain,but I'm a citizen of France.
我在西班牙出生，但是我是一个法国公民。
I bound the base of the tree with sticky tape, making it impossible for the ants to reach the aphids.
我用一条胶带把桃树底部包上，不让蚂蚁接近蚜虫。